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These no-bake cinnamon toast crunch bars are the easiest treat you can make with just 3 ingredients and no oven required. Between the crispy cereal squares loaded with cinnamon sugar and the melted marshmallow mixture, these bars are hard to beat.
They are like a Rice Krispie Treat, only better, and they come together so quickly that you can have them ready in minutes!

Table of Contents
Why This Recipe Works
Being able to make such a tasty treat with a handful of ingredients and without turning on the oven is a total triumph. Only 3 ingredients stand between you and one of the best no bake cinnamon toast crunch desserts around.
If you love fun cereal-based treats, be sure to check out my Homemade Cookie Crisp Cereal!
Ingredients Needed
- Cinnamon Toast Crunch Cereal: You will need a 12 oz. box, or about 8 cups.
- Mini Marshmallows: Use a 10 oz. bag, making sure to reserve 2/3 cup for stirring in at the end.
- Butter: I prefer salted butter, but you can always use what you have on hand.
See recipe card for full information on ingredients and quantities.

How to Make Cinnamon Toast Crunch Bars
- Pour the Cinnamon Toast Crunch cereal into a large bowl.
- Melt the butter in a medium saucepan over medium low heat. Don’t turn it on too high, low and slow is the best way to go.


- Once the butter is melted, add the marshmallows {reserving 2/3 cup}. Continue to cook over medium low heat until the marshmallows have melted.
- Pour the melted butter and marshmallow mixture over the cereal.


- Stir the melted marshmallow mixture into the cereal carefully, being sure to not break the cereal.
- Add the reserved mini marshmallows and stir them in until they are evenly incorporated.


- Pour into a 9×9 pan that has been sprayed with nonstick spray.
- Press the mixture down into the pan. I like to use a zipper bag that I have sprayed with nonstick spray so that it doesn’t stick to my hand.


Pro Tips
- Spray the pan generously. Be sure to spray the 9×9 pan liberally with nonstick spray before adding the mixture so the bars release cleanly.
- Press the bars firmly into the pan. This is how you make sure that the cinnamon toast crunch cereal bars hold together well when you cut them. Try using a zipper bag over your hand that is sprayed with non-stick spray.
- Let them set before cutting. Allow the bars to set up for at least 1 hour before cutting. I prefer 4 hours to overnight for the best results.
- Store them properly to keep them fresh. Keep the bars in an airtight container so they don’t get stale.

Storage Instructions
Store in an airtight container at room temperature for up to 3 days. Place a piece of wax paper or parchment between layers to keep them from sticking together.
Recipe FAQs
Yes! Fruit Loops, Captain Crunch, Apple Jacks, Cocoa Pebbles, and Honey Grahams would all work great.
Yes. I actually like to make them a day ahead so they have time to set up properly.
Yes. Use a 10 oz. bag of large marshmallows. If you want to stir some in at the end, hold out 5 large marshmallows and cut them into small pieces.

Do you love fun desserts? Try these recipes…
- Hostess Cupcake Cookies
- Texas Sheet Cake Bundt Cake
- Reese’s Peanut Butter Cookies
- Cosmic Brownie Cookies
- Muddy Buddy Cookies
- Chocolate Rice Krispie Treats

No Bake Cinnamon Toast Crunch Bars Recipe
Ingredients
- ½ cup butter
- 10 oz. bag mini marshmallows
- 12 oz. box Cinnamon Toast Crunch Cereal
Instructions
- Spray a 9×9 baking pan liberally with non stick cooking spray and set aside.
- Pour the Cinnamon Toast Crunch cereal into a large bowl and set aside. Open the marshmallows and reserve ⅔ cup.
- Add the butter to a medium saucepan and melt over medium-low heat. Pour the marshmallows {except for the reserved amount} into the melted butter and continue to cook over medium-low heat until melted.
- Pour the melted butter and marshmallow mixture over the Cinnamon Toast Crunch Cereal and stir to combine {making sure to not break up the cereal as you stir}. Once combined, add the reserved marshmallows and stir until evenly incorporated.
- Pour the mixture into the prepared 9×9 baking pan and press down firmly.
- Cover and allow the no bake bars to set up at room temperature for 4 hours to overnight. Store the leftovers in an airtight container for up to 3 days. Use parchment or wax paper between layers.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.













How much Butter?
1/2 cup