Cinnamon Toast Crunch Marshmallow Cookies

If you love the cozy flavor of cinnamon sugar cereal and the soft, chewy texture of a homemade cookie, these Cinnamon Toast Crunch Marshmallow Cookies bring both together in one irresistible treat. Each cookie has a buttery, tender center, crisp cereal pieces, and pockets of gooey marshmallow that melt beautifully as they bake.

What makes these cookies especially fun is the contrast in every bite. The Cinnamon Toast Crunch adds a sweet cinnamon crunch, while the marshmallows create soft, stretchy pockets throughout the cookie. They are simple enough for a beginner to make, yet unique enough to stand out on a dessert table, cookie tray, or weekend baking spread.

This recipe is also a great way to turn a favorite breakfast cereal into something completely different. With a handful of everyday baking ingredients and a few easy techniques, you can make bakery-style cookies right in your own kitchen.

Why You’ll Love This Recipe

• Easy to make: The dough comes together with simple baking ingredients and straightforward steps, making this a great recipe for beginners.
• Soft and chewy: The cookies bake up tender in the center with lightly crisp edges and plenty of chewy texture.
• Cinnamon sugar flavor: Cinnamon Toast Crunch gives every bite a warm, sweet cinnamon flavor that pairs beautifully with buttery cookie dough.
• Gooey marshmallow pockets: Small pieces of marshmallow melt into the cookies as they bake, creating soft, caramelized spots throughout.
• Fun texture: Crunchy cereal pieces add a pleasant contrast to the soft cookie and melted marshmallow.
• A creative twist: This recipe turns a familiar breakfast cereal into a memorable homemade dessert.
• Great for sharing: These cookies are perfect for bake sales, parties, holiday cookie trays, or an easy weekend treat.
• Easy to customize: You can adjust the cereal pieces, add extra cinnamon, or mix in other favorite cookie ingredients for your own variation.

Ingredients

Here is everything you need to make these Cinnamon Toast Crunch Marshmallow Cookies. Most of the ingredients are simple pantry staples, so there is no need for a complicated shopping list.

• 1 cup unsalted butter, softened to room temperature
• 1 cup granulated sugar
• 1/2 cup packed light brown sugar
• 2 large eggs
• 2 teaspoons pure vanilla extract
• 2 1/2 cups all-purpose flour
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1 teaspoon ground cinnamon
• 1 1/2 cups Cinnamon Toast Crunch cereal, lightly crushed
• 1 cup mini marshmallows
• 1/2 cup Cinnamon Toast Crunch cereal, reserved for topping

Optional Cinnamon Sugar Topping

For an extra touch of cinnamon sweetness, combine:

• 2 tablespoons granulated sugar
• 1/2 teaspoon ground cinnamon

The cereal should be crushed into a mixture of small pieces and crumbs rather than turned into a fine powder. This helps preserve some of its signature crunch and gives the finished cookies a better texture.

Ingredient Notes & Substitutions

A few small ingredient choices can make a noticeable difference in the texture and flavor of these Cinnamon Toast Crunch Marshmallow Cookies. Here are some helpful tips before you start mixing the dough.

Butter

Use unsalted butter so you can control the amount of salt in the recipe. Let it soften naturally at room temperature until it is easy to press but not melted.

If you only have salted butter, you can use it and reduce the added salt slightly.

Granulated Sugar

Granulated sugar helps create lightly crisp edges and adds sweetness without making the cookies too dense.

For a slightly softer cookie, you can replace a small portion with additional brown sugar.

Brown Sugar

Light brown sugar adds moisture and a subtle caramel flavor, which helps keep the cookies soft and chewy.

Dark brown sugar can also work if you want a deeper molasses flavor.

Eggs

Use large eggs at room temperature when possible. They help bind the dough and contribute to the soft texture.

For best results, avoid substituting the eggs with liquid ingredients because the dough’s consistency can change significantly.

Vanilla Extract

Pure vanilla extract gives the cookies a warm background flavor that works especially well with cinnamon. Imitation vanilla can also be used if that is what you have available.

All-Purpose Flour

All-purpose flour provides the structure these cookies need while keeping them tender.

For a gluten-free version, use a reliable 1-to-1 gluten-free baking flour that is designed to replace all-purpose flour. Also check that your cereal and other packaged ingredients are certified gluten-free.

Cinnamon

Ground cinnamon gives the dough an extra layer of warm spice and reinforces the cinnamon flavor from the cereal.

If you prefer a stronger cinnamon taste, you can add a little more, but avoid using so much that it overwhelms the buttery cookie base.

Cinnamon Toast Crunch

Crush some of the cereal into small pieces while leaving a few larger pieces for texture. Avoid pulverizing all of it into fine crumbs.

If you do not have enough cereal, you can use additional crushed cereal for the topping, although the signature flavor will be slightly less pronounced.

Mini Marshmallows

Mini marshmallows are convenient because they distribute easily throughout the dough. You can also cut regular marshmallows into smaller pieces if needed.

Keep in mind that exposed marshmallow can melt onto the baking sheet. Placing marshmallow pieces inside the dough rather than directly against the pan helps reduce sticking and excessive spreading.

Dairy-Free Option

For a dairy-free version, use a plant-based butter that is specifically formulated for baking. Check the cereal and marshmallows as well, since ingredients can vary by brand.

Nut-Free Option

This recipe does not require nuts, making it easy to keep nut-free. If you add any optional mix-ins, check their labels carefully for potential cross-contact.

Budget-Friendly Tip

If you already keep basic baking staples such as flour, sugar, cinnamon, baking soda, and vanilla in your pantry, the main specialty ingredients are the cereal and marshmallows. Buying the cereal when it is on sale can make this recipe especially economical.

Kitchen Tools Needed

You do not need any fancy equipment to make these Cinnamon Toast Crunch Marshmallow Cookies. A few basic kitchen tools are all you need.

• Large mixing bowl: Gives you enough room to mix the cookie dough without spilling.
• Medium bowl: Useful for combining the dry ingredients before adding them to the wet mixture.
• Electric hand mixer or stand mixer: Makes creaming the butter and sugars quick and easy. You can also mix by hand with a sturdy wooden spoon.
• Measuring cups and spoons: Accurate measurements help keep the cookie texture consistent.
• Rubber spatula: Perfect for scraping the sides of the bowl and gently folding in the cereal and marshmallows.
• Cookie scoop: Helps create evenly sized cookies so they bake at the same rate.
• Baking sheets: Use sturdy, flat baking sheets for even baking.
• Parchment paper: Helps prevent sticking and makes cleanup much easier.
• Wire cooling rack: Allows air to circulate around the cookies so the bottoms do not become soggy as they cool.

Optional Helpful Tools

A small food processor can quickly crush the Cinnamon Toast Crunch, but it is not necessary. A sealed food bag and rolling pin work just as well.

A cookie scoop is also optional, but it is especially useful if you want every cookie to have a similar size and appearance.

Step-by-Step Instructions

Making these Cinnamon Toast Crunch Marshmallow Cookies is simple, but a few details make a big difference in the final texture. Follow these steps for soft centers, lightly golden edges, crunchy cereal pieces, and gooey marshmallow pockets.

1. Prepare the Oven and Baking Sheets

Preheat your oven to 350°F (175°C). Line two baking sheets with parchment paper and set them aside.

Make sure the oven has fully preheated before the cookies go in. A properly heated oven helps the dough spread and bake evenly.

2. Crush the Cinnamon Toast Crunch

Measure out the cereal for the cookie dough and lightly crush it into small pieces.

You want a mixture of crumbs and small chunks. Do not grind the cereal into a fine powder because some larger pieces provide a pleasant crunch in the finished cookies.

Set aside the additional cereal you will use for topping.

3. Mix the Dry Ingredients

In a medium bowl, whisk together the all-purpose flour, baking soda, baking powder, salt, and ground cinnamon.

Mixing these ingredients first helps distribute the leavening agents and cinnamon evenly throughout the flour.

Set the bowl aside while you prepare the wet ingredients.

4. Cream the Butter and Sugars

Place the softened butter, granulated sugar, and brown sugar in a large mixing bowl.

Beat until the mixture looks smooth, creamy, and slightly fluffy, about 2 to 3 minutes with an electric mixer.

Do not use melted butter here. Melted butter can make the dough spread too much during baking.

5. Add the Eggs and Vanilla

Beat in the eggs one at a time, mixing well after each addition.

Add the vanilla extract and mix until everything is smooth and evenly combined.

Scrape down the sides of the bowl with a spatula if needed.

6. Add the Dry Ingredients

Gradually add the dry ingredients to the butter mixture.

Mix on low speed just until the flour disappears. Avoid overmixing because too much mixing can develop the gluten in the flour and make the cookies less tender.

The finished dough should be thick and soft.

7. Fold in the Cereal

Add the crushed Cinnamon Toast Crunch to the dough.

Use a rubber spatula to gently fold it in until the cereal pieces are spread throughout the dough.

Try not to crush the cereal further while mixing.

8. Add the Marshmallows

Gently fold the mini marshmallows into the dough.

Make sure they are distributed evenly, but do not overwork the dough.

For the neatest-looking cookies, keep most of the marshmallow pieces tucked inside the dough. Marshmallows sitting directly on the baking sheet can melt and caramelize quickly.

9. Scoop the Cookie Dough

Use a cookie scoop or tablespoon to portion the dough onto the prepared baking sheets.

Leave about 2 inches of space between each portion because the cookies will spread as they bake.

For a bakery-style appearance, press a few extra pieces of Cinnamon Toast Crunch into the tops of the dough balls before baking.

10. Add the Cinnamon Sugar

If using the optional cinnamon sugar topping, lightly sprinkle it over each cookie dough ball.

You can also press a few reserved cereal pieces into the tops for extra crunch and a more recognizable Cinnamon Toast Crunch appearance.

11. Bake the Cookies

Place the baking sheet in the preheated oven and bake for approximately 9 to 12 minutes.

The edges should look lightly golden and set, while the centers should still appear slightly soft.

Do not wait until the centers look completely firm. The cookies will continue cooking from the residual heat after they come out of the oven.

12. Let Them Rest on the Baking Sheet

Remove the cookies from the oven and let them sit on the baking sheet for about 5 minutes.

This short resting period allows the cookies to finish setting without becoming overly firm.

If some marshmallow has melted around the edges, you can gently reshape the warm cookies with a round cookie cutter or the edge of a spatula.

13. Transfer and Cool

Carefully transfer the cookies to a wire cooling rack.

Let them cool for another 10 to 15 minutes before serving.

The centers will become more stable as they cool while remaining soft and chewy.

Common Mistakes to Avoid

Do not overmix the dough. Mix only until the dry ingredients are incorporated.

Do not use warm or melted butter. Softened butter gives you better control over the cookie’s spread.

Do not crush all the cereal too finely. Small chunks provide much better texture.

Do not overcrowd the baking sheet. Give each cookie enough room to spread.

Do not overbake. The centers should look slightly underdone when you remove the cookies from the oven. This is what helps keep them soft after cooling.

Watch the marshmallows carefully. Exposed marshmallow can melt quickly, so keeping most pieces surrounded by dough helps prevent excessive browning on the baking sheet.

Expert Tips

A few small baking techniques can make these Cinnamon Toast Crunch Marshmallow Cookies even better. Use these tips to get the best balance of chewy texture, cinnamon flavor, crisp cereal, and gooey marshmallow.

1. Start With Properly Softened Butter

The butter should be soft enough to mix easily but should not look shiny or melted. Properly softened butter helps create a smooth dough and keeps the cookies from spreading too quickly.

2. Measure Flour Carefully

Too much flour can make cookies dry and cakey. For the most accurate results, spoon the flour into your measuring cup and level the top rather than scooping directly from the flour bag.

3. Keep Some Cereal Pieces Larger

Do not crush every piece of Cinnamon Toast Crunch into fine crumbs. A combination of crumbs and small chunks gives the cookies more texture and makes the cereal flavor easier to notice.

4. Chill the Dough if It Feels Too Soft

If your kitchen is warm or the dough seems unusually soft, refrigerate it for 20 to 30 minutes before scooping.

Chilling helps reduce excessive spreading and can give the cookies thicker centers.

5. Keep Marshmallows Inside the Dough

Try to position most marshmallow pieces in the middle of each dough ball. Exposed marshmallows can melt onto the parchment and become overly browned.

If you want visible marshmallow on top, add only a small amount and keep an eye on the cookies while they bake.

6. Bake One Test Cookie First

If you are unsure about how much the dough will spread, bake one cookie before filling the entire baking sheet.

If it spreads too much, chill the dough. If it stays unusually thick, gently flatten the remaining dough portions before baking.

7. Watch the Edges, Not Just the Center

The cookies are ready when the edges look set and lightly golden while the centers still appear soft.

Waiting for the centers to look completely baked can result in firmer cookies once they cool.

8. Add Fresh Cereal After Baking

For extra crunch, press a few small pieces of Cinnamon Toast Crunch onto the warm cookies immediately after they come out of the oven.

This gives the finished cookies a stronger cereal crunch and a more attractive appearance.

9. Let the Cookies Finish Setting

Freshly baked cookies are delicate. Let them rest on the baking sheet for about 5 minutes before moving them to a cooling rack.

This gives the centers time to firm up while keeping their soft, chewy texture.

10. Use Parchment Paper

Parchment paper makes cleanup easier and helps prevent the sugary marshmallow from sticking directly to the baking sheet.

It also makes it easier to transfer the cookies once they have cooled slightly.

Variations

One of the best things about these Cinnamon Toast Crunch Marshmallow Cookies is how easy they are to customize. Keep the classic recipe as written, or try one of these simple variations.

Cinnamon Sugar Crunch Cookies

For an even stronger cinnamon sugar flavor, lightly coat the dough balls in a mixture of granulated sugar and ground cinnamon before baking.

You can also sprinkle a little extra cinnamon sugar over the warm cookies as soon as they come out of the oven.

Extra Marshmallow Cookies

If you prefer a gooier cookie, add a few additional mini marshmallows to each portion of dough.

Keep most of them inside the dough rather than placing them directly on the baking sheet to reduce excessive melting.

Chocolate Cinnamon Cookies

Add 1/2 cup of chocolate chips to the dough for a rich chocolate and cinnamon combination.

Milk chocolate gives the cookies a sweeter flavor, while semisweet chocolate provides a more balanced contrast.

White Chocolate Version

Replace the chocolate chips with 1/2 cup white chocolate chips.

The creamy sweetness pairs nicely with the warm cinnamon flavor and gives the cookies a softer dessert-like taste.

Caramel Cinnamon Cookies

Add 1/2 cup caramel baking bits to the dough along with the cereal.

The caramel adds a buttery sweetness that works especially well with the cinnamon cereal and toasted marshmallow flavor.

Peanut Butter Variation

For a nutty twist, add 1/3 cup creamy peanut butter to the butter and sugar mixture.

Because peanut butter changes the dough’s consistency, you may need a small adjustment to the flour. Add the flour gradually and stop once the dough reaches a thick, scoopable consistency.

Gluten-Free Version

Use a 1-to-1 gluten-free all-purpose baking flour in place of regular flour.

Be sure to check the labels on the cereal, marshmallows, chocolate chips, and other packaged ingredients if you need the entire recipe to be gluten-free.

Dairy-Free Version

Use a plant-based butter made specifically for baking and choose dairy-free chocolate if adding chocolate chips.

Always check the cereal and marshmallow labels because ingredients can vary between brands.

Lower-Sugar Option

For a less sweet cookie, reduce the granulated sugar slightly and skip the cinnamon sugar topping.

Keep in mind that changing the amount of sugar can affect spreading and texture, so avoid making a large reduction.

Holiday Cookie Version

Shape the dough into smaller cookies and add seasonal sprinkles before baking.

For a festive presentation, use a simple cinnamon sugar coating and arrange the finished cookies on a dessert platter.

Cereal Mix-In Variation

For a fun cereal-cookie combination, replace a portion of the Cinnamon Toast Crunch with another crunchy cereal you enjoy.

Keep at least some Cinnamon Toast Crunch in the dough so the signature cinnamon flavor remains noticeable.

Storage Instructions

These Cinnamon Toast Crunch Marshmallow Cookies are best when enjoyed fresh, but proper storage helps keep them soft and chewy for several days.

Room Temperature Storage

Once the cookies have cooled completely, place them in an airtight container.

Store them at room temperature for 3 to 4 days. For the best texture, place a sheet of parchment paper between layers if you are stacking the cookies.

Keep the container away from direct sunlight and sources of heat. Excess warmth can make the marshmallow sticky and cause the cookies to soften too much.

Refrigerator Storage

Refrigeration is not usually necessary for these cookies. In fact, storing them in the refrigerator can make the cookies firmer and cause the cereal to lose some of its crunch.

If your kitchen is particularly warm, you can refrigerate them in a tightly sealed container. Let the cookies sit at room temperature for several minutes before serving.

Freezing Baked Cookies

The baked cookies can be frozen for about 2 to 3 months.

Allow them to cool completely, then place them in a freezer-safe container or bag. Separate layers with parchment paper to prevent them from sticking together.

When ready to enjoy, thaw the cookies at room temperature.

Freezing Cookie Dough

You can also freeze the unbaked cookie dough, which is convenient when you want freshly baked cookies later.

Scoop the dough into individual portions and place them on a parchment-lined tray. Freeze until firm, then transfer the portions to a freezer-safe bag or container.

Label the container with the date and baking instructions.

When ready to bake, place the frozen dough portions on a lined baking sheet and allow them to sit at room temperature briefly before baking. You may need to add a couple of minutes to the baking time.

How to Reheat the Cookies

For a warm, soft texture, place a cookie in the microwave for about 8 to 10 seconds.

Be careful when eating reheated cookies because the melted marshmallow can become very hot. Let the cookie rest for a moment before taking a bite.

For a slightly crispier exterior, warm the cookies in a 300°F (150°C) oven for 3 to 5 minutes.

Keeping the Cereal Crunchy

The cereal naturally softens over time because it absorbs moisture from the cookie.

For the best crunch, store the cookies in a tightly sealed container and avoid adding any extra cereal until shortly before serving. Freshly added cereal on top will provide a better crisp texture.

Frequently Asked Questions

Can I make Cinnamon Toast Crunch Marshmallow Cookies without a mixer?

Yes. You can cream the softened butter and sugars by hand with a sturdy wooden spoon or spatula. It takes a little more effort, but the cookies will still turn out well.

Why did my marshmallows melt completely?

Marshmallows can melt quickly when they are exposed to the hot baking sheet. Try keeping most marshmallow pieces surrounded by cookie dough and avoid placing large pieces directly on the bottom or edges of the dough.

Can I use regular marshmallows instead of mini marshmallows?

Yes. Cut regular marshmallows into small pieces before adding them to the dough. Smaller pieces distribute more evenly and are easier to keep inside the cookies.

Do I need to chill the cookie dough?

Not always. If the dough feels thick and holds its shape when scooped, you can bake it immediately. If it feels very soft or your kitchen is warm, chilling it for 20 to 30 minutes can help prevent excessive spreading.

Why are my cookies spreading too much?

Common causes include butter that was too warm, insufficient flour, an overly warm baking sheet, or dough that was not chilled when needed. Make sure your measurements are accurate and allow the baking sheet to cool between batches.

Can I use another cinnamon cereal?

Yes. Another crunchy cinnamon-flavored cereal can work as a substitute. The flavor and texture will vary depending on the cereal, but the basic method remains the same.

Can I add chocolate chips?

Absolutely. Semisweet, milk chocolate, or white chocolate chips all pair nicely with the cinnamon and marshmallow flavors. About 1/2 cup is a good starting amount.

Can I make these cookies gluten-free?

Yes. Use a reliable 1-to-1 gluten-free baking flour and verify that the cereal, marshmallows, and any additional mix-ins are gluten-free.

How do I keep the cookies soft?

Avoid overbaking them. Remove the cookies when the edges are lightly golden and set while the centers still look slightly soft. Store completely cooled cookies in an airtight container.

Can I freeze these cookies?

Yes. Baked cookies can be frozen for about 2 to 3 months. You can also freeze scooped portions of cookie dough and bake them later.

Why did my cookies turn out hard?

Overbaking is one of the most common reasons. Too much flour can also make cookies firm and dry. Measure the flour carefully and take the cookies out while the centers are still slightly soft.

How long should the cookies cool before eating?

Let them rest on the baking sheet for about 5 minutes, then transfer them to a cooling rack. They can be enjoyed warm, but allowing them to cool for another 10 to 15 minutes helps the texture settle.

Final Thoughts

These Cinnamon Toast Crunch Marshmallow Cookies are a fun way to turn a familiar breakfast cereal into a homemade dessert with plenty of texture and personality. The buttery cookie base, warm cinnamon flavor, crunchy cereal pieces, and soft marshmallow centers make every bite a little different.

They are also simple enough for a casual weekend baking project and special enough to share with friends, family, or anyone who enjoys creative cookie recipes. For the best texture, serve them slightly warm when the marshmallow is still soft and the centers are tender.

If you make these cookies, try adding your own twist with chocolate chips, extra cinnamon sugar, or a different cereal combination. Store any leftovers in an airtight container and enjoy them over the next few days.

If you enjoyed this recipe, consider sharing it with someone who loves Cinnamon Toast Crunch and homemade cookies.