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This delicious Cheerio Bars Recipe is packed with marshmallows and so gooey. Make these for the perfect snack, dessert or treat any day of the week.

Cheerios Bars cut into squares on a platter
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We love making these Cheerio Bars because of how quick and easy they are to make. The combination of the sweet and salty flavor makes them my kids favorite. They are the perfect snack recipe and a delicious treat on the go.

If you love our Rice Krispies Treats, then you will love these Cheerio Bars. You might also like No Bake Cinnamon Corn Flake Cereal Bars Recipe. This easy no bake recipe is simple and very tasty!

Why Make These Treats:

These budget friendly treats only require 3 ingredients and can be made in a variety of ways. This is the perfect lunch box treat, grab and go breakfast or after school snack idea that everyone loves.

These cereal bars taste so much better than the store bought treats and can easily be topped with your favorite candy or chocolate chips.


Cheerio Bars ingredients - butter, marshmallows, cheerios
  • Butter
  • Mini Marshmallows
  • Plain Cheerios Cereal

For the full list of ingredients and recipe, scroll to the bottom for the recipe card.

Variations Ideas:

  • Cereal – We have used plain, honey nut cheerios and multi grain cheerios.
  • Peanut Butter – Mix in your favorite creamy peanut butter, cashew butter, and almond butter to make no bake peanut butter cheerio bars. Another addition to this mixture is honey, agave, or maple syrup. Peanut butter and honey is a great combination.
  • Chocolate Chips – Mix in white chocolate, dark chocolate chips, milk chocolate chips or you can even drizzle melted chocolate over the top of the mixture.
  • Candy – For added flavor, top the cereal bars in even layer of M&M or Reese’s Pieces.
  • Add Nuts – You can easily add in nuts for added flavor and texture. Mix in peanuts, slice almonds, or any other nuts.
  • Healthy Seeds – If you want to sneak in some healthy seeds to the mixture we recommend flax seeds, chia or hemp seeds.
  • Sprinkles – If you are making these for a celebration add in funs sprinkles. We like to mix in their favorite color sprinkles for a fun and festive treat.

Step by Step Instructions:

Spraying the cooking spray in a glass baking dish

Step 1 – First, grease a 9×13 pan with nonstick cooking spray.

Melting marshmallows and butter in a large pot

Step 2 – In a pot, melt the butter over low with the marshmallows. Continue stirring until they are completely melted.

Mixing in Cheerios into the melted marshmallow and butter in a large pot

Step 3 – Once melted, stir in the cheerios.

Cheerio mixture pressed into the baking dish

Step 4 – Quickly press into the pan. Allow to cool completely – then cut into bars.

Recipe Tips:

  • Melting Marshmallows – You can melt the marshmallows and butter together over medium heat in a sauce pan. Or place in a microwave safe bowl to melt.
  • Rubber Spatula – To easily press the cereal mixture into the pan, spray the spatula with cooking spray and press into the baking dish. Spraying the spatula allows the mixture to not stick to the spatula. You can also press the mixture into the pan with parchment paper.
Cheerio Bars cut into squares

Frequently Asked Questions:

How to Store Leftovers:

Store leftovers in an airtight container for up to 4 days at room temperature.

Can I Freeze?

Yes, you can freeze the cheerio treats if you have leftovers. You can easily double the batch and then freeze in individual slices. Wrap in plastic wrap and then foil and freeze for up to 3 months.

More Easy Treat Ideas

We love hearing from you. If you make these cheerio marshmallow treats, please leave a star review.

Cheerio Bars

4.97 from 27 votes
Try using cheerio cereal to make these yummy No Bake Cheerio Bars Recipe. Cheerio Treats are so simple. Cheerio Cereal Bar Recipe is the best!
Prep Time 5 minutes
Cook Time 5 minutes
Total Time 10 minutes
Servings 12
Cuisine American
Course Dessert
Calories 136


  • 3 tablespoons butter
  • (1) 10.5 oz bag miniature marshmallows
  • 5 cups Cheerios cereal (We have used plain and multi grain cheerios)
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  • Grease a 9×13 pan.
  • In a pot, melt the butter over low with the marshmallows. Continue stirring until they are completely melted.
  • Once melted, mix in the cheerios.
  • Quickly press into the pan. Allow to cool completely – then cut into squares.

Recipe Notes

You can line the baking pan with parchment paper or wax paper for easy removal of the bars from the pan.  Enjoy! 

Nutrition Facts

Calories 136kcal, Carbohydrates 26g, Protein 1g, Fat 3g, Saturated Fat 1g, Cholesterol 7mg, Sodium 95mg, Potassium 56mg, Sugar 14g, Vitamin A 375IU, Vitamin C 1.9mg, Calcium 36mg, Iron 3mg

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About the Author

Hi, I’m Carrie. Welcome to Eating on a Dime!

I’m on a mission to help you cook delicious meals without busting your budget. Together we are going to cook real food… for real families!

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Recipe Rating


  1. Trish says:

    I used pumpkin spice Cheerios

  2. Raija says:

    4 stars
    These are really good, but maybe need 6 cups of cereal instead of just 5. It was quite the marshmallowy mess, but managed to get them together! They are yummy, but lots of marshmallow!

  3. Donna says:

    5 stars
    I used pumpkin spice cheerios. Turned out fantastic!

  4. Carrie says:

    Can you replace the marshmallows with peanut butter???

  5. Leila A Hodo says:

    5 stars
    Love all you all recipe I can afford thank you

  6. Char johnson says:

    This sounds great, could I use marshmallow cream?

  7. Susan Smith says:

    5 stars
    I make these with multi-grain Cheerios, but I add peanut butter and raisins. The raisins are my favorite.