Fruity Pebbles Treats are soft and chewy no-bake bars made with mini marshmallows and a generous amount of colorful crispy rice cereal. With just a few simple ingredients and a quick and easy recipe, you can enjoy this bright twist on classic Rice Krispie Bars in no time!

Cut up Fruity Pebbles Treats.
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Ingredients & Substitutions

Cereal: The multicolored Fruity Pebbles cereal makes this a fun and easy treat or snack to satisfy your sweet tooth! Of course, you could substitute regular rice cereal, or use a combination of the two to still get a little bit of color.

Marshmallows: This recipe calls for 10 cups of mini marshmallows. One 10-ounce bag of miniature marshmallows yields 6 cups, so you will need two bags. Or, make your own homemade marshmallows to use! If you only have regular-sized marshmallows, you will need about 77 marshmallows to equal 10 cups of mini.

Butter: Unsalted butter is the best choice when making these bars. Salted butter could affect the sweetness of the bars, making them too salty.

Stack of Fruity Pebbles Treats.

Can I Use a Different Sized Pan?

Certainly! If you prefer thicker Rice Krispie bars, you can use an 8×8-inch pan (as I did in this recipe). However, if you prefer thinner bars or want to make more of them at once, you can use a 9×9-inch or 9×13-inch baking dish. It’s important to note that the larger the pan you use, the thinner the bars will be, as the mixture will be spread out over a greater surface area.

Hands pulling Apart a Soft Fruity Pebbles Treat.

How to Store Fruity Pebbles Treats

There are a few ways to store these treats. Here are a few options:

  • Room Temperature: The bars will last 3-4 days when stored in an airtight container at room temperature.
  • To Refrigerate: Store the cooled bars in an airtight container for up to a week in the refrigerator.
  • To Freeze: After letting the bars cool completely, wrap them in plastic wrap with another layer of aluminum foil. Store them in a freezer-safe container for 3-4 months (although best enjoyed within a month of freezing).
Cut up Fruity Pebbles Treats.
5 from 1 vote

Fruity Pebbles Treats

Prep Time 10 minutes
Total Time 10 minutes
Fruity Pebbles Treats are soft and chewy no-bake bars made with mini marshmallows and a generous amount of colorful crispy rice cereal.


  • 5 tablespoons unsalted butter
  • 10 cups (500 g) mini marshmallows, divided
  • 6 cups (216 g) Fruity Pebbles cereal


  • Spray an 8×8-inch baking dish with nonstick cooking spray. Set aside.
  • In a large pot over medium heat, melt butter.
  • Add 8 cups of marshmallows, frequently stirring until melted. Once melted, remove from heat.
  • Using a clean rubber spatula, fold in the Fruit Pebbles cereal. (I like to spray the spatula with nonstick spray to prevent sticking.) Stir until well-coated.
  • Fold in the remaining marshmallows and transfer the mixture into the prepared baking dish. Press into an even layer.
  • Allow the bars to cool to room temperature before cutting and serving.

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Meet Amanda Rettke

Amanda Rettke is the creator of I Am Baker, and the bestselling author of Surprise Inside Cakes: Amazing Cakes for Every Occasion – With a Little Something Extra Inside.Over the course of her 15+ year blogging adventure, she has been featured in and collaborated with the Food Network, New York Times, LA Times, Country Living Magazine, People Magazine, Epicurious, Brides, Romantic Homes, life:beautiful, Publishers Weekly, The Daily Mail, Star Tribune, The Globe and Mail, DailyCandy, YumSugar, The Knot, The Kitchn, and Parade, to name a few.

Reader Comments

  1. Just love reading your website some of the recipes I am going to try I have tried the rice krispie treats with now I can use fruity pebbles I did the Coco it didn’t turn out right but now I’ll try to fruity pebbles rice treats thank you and keep on cooking with love

    1. I have been making fruity pebbles rice krispy treats for years. Try using the flavored marshmallows. Line the pan with parchment paper, Then melt some orange chocolate melts in the bottom of pan. Then press the treats on top, then drizzle some of the orange chocolate disks on top. Let set till the chocolate sets. That’s how I always make them. Always a winner.

  2. Just an FYI you have 6 cups of marshmallows in the ingredients and say 8 cups in the instructions 😉. Damn those typos!

    1. Hi Kelly! It says 10 cups of marshmallows, 8 cups are melted and the remaining 2 cups are marshmallows are mixed it. It says 6 cups of cereal. Hope that helps!

  3. A 16 oz bag of mini marshmallows is 9 2/3 cups marshmallows, 5 tablespoons of butter and 6cups crispy cereal of your choice is on point. Recipe is awesome

  4. 16 oz of mini marshmallows is 9 2/3 cups, the butter and cereal is right on point, awesome recipe 😋

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