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Home » Recipes » No Bake Treats

Cereal Marshmallow Treats

Modified: Mar 4, 2025 · Published: Mar 28, 2021 by Heather · As an Amazon Associate I earn from qualifying purchases. · 694 words. · About 4 minutes to read this article.

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Cereal marshmallow treats recipe.
Cereal marshmallow treats recipe.
Cereal marshmallow treats recipe.

Cereal marshmallow treats will have you feeling a little nostalgic. These no-bake dessert bars are filled with your favorite sugary childhood cereal and gooey marshmallows.

Cereal marshmallow treats on a marble counter top.

Who else gets a little nostalgic walking down the cereal aisle? Next time you're at the grocery store, grab a box of your favorite childhood cereal and make a batch of cereal marshmallow treats!

These no-bake treats can be made with just about any brand of cereal - make them fruity or chocolatey! Chewy, gooey, and sweet - the entire family will love them.

Cereal marshmallow treats are so easy to make that the kids can help. Make a batch on the weekend, for a picnic or barbecue, or as a last-minute school treat.

Ingredients and substitutions

Ingredients on a counter top.
  • Cereal - Grab six cups of your favorite cereal - Honey Smacks are shown, but check out my full list of cereal options below, which includes Fruity Pebbles, Reese's Puffs, and more.
  • Mini marshmallows - I prefer mini marshmallows because they melt easily and quickly, but regular marshmallows will also work.
  • Butter - Salted butter can be substituted with unsalted butter and a pinch of salt. A bit of salt in this recipe helps balance the sweetness and enhances the flavor of whatever cereal you choose.

Cereal variations

Preparing marshmallow treats and pressing into a pan.

The great part about this recipe is that it can be made with just about any type of cereal. My suggestion? Rice Krispies, Cocoa Krispies, and Fruity Pebbles add the best texture.

However, this recipe will work with just about any cereal out there! Here are a few more ideas:

  • Corn Flakes
  • Frosted Flakes
  • Cocoa Krispies
  • Fruity Pebbles
  • Rice Krispies
  • Chex
  • Golden Grahams
  • Fruit Loops
  • Trix
  • Cheerios
  • Reese's Puffs

Try combining several of your favorite cereals into a single batch! Make a fruity cereal bar with Fruit Loops and Fruity Pebbles, or a chocolatey bar with Reese's Puffs and Cocoa Krispies.

Frequently asked questions

A white plate stacked with cereal marshmallow treats.
How long do marshmallow treats last?

They're best enjoyed within 1 to 2 days of preparing and dry out quickly after that. Store prepared treats in a tightly sealed container at room temperature.

Can marshmallow treats be frozen?

Yes, cereal marshmallow treats freeze well, up to six weeks or more when stored in optimal conditions. I suggest tightly wrapping your treats in foil, then storing in a tightly sealed freezer-safe container or bag.

Can I substitute the marshmallows in Rice Krispies treats?

Marshmallows can be substituted with a jar of marshmallow fluff. The butter and marshmallows could also be substituted with ¾ cup of peanut butter and ¾ cup of honey heated over medium heat until melted and smooth, similar to the base of scotcheroos. Peanut butter works best with neutral cereals like Frosted Flakes and Rice Krispies, or chocolate cereals like Reese's Puffs and Cocoa Krispies.

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📖 Recipe

A white plate stacked with cereal marshmallow treats.
Pin Print Rate
4.85 from 19 reviews

Cereal Marshmallow Treats

Cereal marshmallow treats will have you feeling a little nostalgic. These no-bake dessert bars are filled with your favorite sugary childhood cereal and gooey marshmallows.
Prep Time15 minutes minutes
Total Time15 minutes minutes
Servings: 24 squares
Calories: 87kcal
Author: Heather

Ingredients

  • ¼ cup (57 g) salted butter
  • 10 ounces (284 g) mini marshmallows
  • 6 cups (168 g) cereal, see options below*
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Instructions

  • Line 9x13 pan with parchment paper (or lightly grease) and set aside.
  • In a saucepan over low heat, melt butter. Add mini marshmallows, stirring until melted and evenly incorporated. Remove from heat.
  • Add cereal and stir until evenly coated. Press evenly into prepared 9x13 pan. Allow to set for 10 minutes to cool.
  • Slice into 2 inch squares and serve.

Equipment Recommendations

  • 9x13 Nonstick Pan
  • Reynolds Parchment Paper
  • SS 3-Quart Saucepan
  • Red Spoonula Set

Notes

  • Weight shown for cereal is for rice krispies. Weight will vary based on type of cereal used. 
  • If you only have unsalted butter on hand, add a pinch of salt to the melted butter and continue with the recipe as written.
  • * Cereal treats can be made with many cereals, including: fruity pebbles, fruit loops, chex, trix, reese's puffs, rice krispies, cocoa krispies, and corn flakes.
  • Marshmallow treats are best enjoyed within 1-2 days of preparing. Leftover treats can be frozen in a tightly sealed container for up to 6 weeks. 
  • Want to add extra flavor? Add a teaspoon of vanilla extract, and/or a teaspoon of cinnamon to your marshmallow mixture before adding your cereal, depending on the flavor of cereal you choose. 

Nutrition Estimate

Serving: 1square | Calories: 87kcal | Carbohydrates: 18g | Protein: 1g | Fat: 2g | Saturated Fat: 1g | Polyunsaturated Fat: 0.2g | Monounsaturated Fat: 1g | Trans Fat: 0.1g | Cholesterol: 5mg | Sodium: 79mg | Potassium: 54mg | Fiber: 2g | Sugar: 9g | Vitamin A: 309IU | Calcium: 5mg | Iron: 3mg
Course: Dessert
Cuisine: American

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Heather of The Toasty Kitchen

Hi, I'm Heather!

I love cooking with simple, everyday ingredients and want to help you make homemade meals with ease.

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