fruity pebble marshmallow cereal bars

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Make a fun and colorful treat that your kids are sure to love with this recipe for fruit pebbles cereal bars! They make the perfect treat for St. Patrick’s Day or a rainbow party!

Three fruit pebbles bars on a white platter.
A picture showing the cover images for all three cookbooks written by Aileen Clark.

Fruity Pebbles Cereal Bars with Rainbow Marshmallows

These cereal bars are so much fun. They are made like Rice Krispie treats with melted mini marshmallows but they are fruity and colorful. After the treat bars are prepared, we top them with colorful cereal marshmallows, gold sequins sprinkles, and green sprinkles! 

The “cereal marshmallows” are dehydrated mini marshmallows in a variety of colors. I’m linking to them on Amazon as that’s the only place I have been able to find them. They are similar to the marshmallows you would find in a cereal like Lucky Charms.

Close up of fruity pebbles cereal bar with rainbow marshmallows.

I am also linking to the gold sequins sprinkles on amazon. You might also be able to find them at a store like Michael’s or similar that sells a lot of cake decorating items. 

Can I double this recipe?

This recipe for fruity pebbles cereal bars makes 6 bars in a. 9×9 pan. If you want to double the recipe, you can, just make them in a 11×15 inch pan. 

Overhead shot of three cereal bars next to st. Patrick's day decorations.

More bar recipes:

Three fruit pebbles bars on a white platter.

Fruity Pebbles Cereal Bars Recipe

Aileen Clark
Make a fun and colorful treat that your kids are sure to love with this recipe for fruit pebbles cereal bars! They make the perfect treat for St. Patrick's Day or a rainbow party!
5 from 1 vote
Prep Time 15 minutes
Cook Time 10 minutes
Total Time 25 minutes
Course Dessert Recipes
Cuisine American
Servings 6
Calories 233 kcal


  • 6 cups Fruity Pebbles cereal
  • 1 10-ounce package mini marshmallows
  • 1/4 cup unsalted butter
  • 1/3 cup cereal marshmallows
  • Gold sequins sprinkles
  • Green sprinkles


  • Grease a 9x9 inch pan and set aside.
  • Melt butter in a large pan over medium-low heat.
  • Mix in mini marshmallows and stir until completely meltd.
  • Place cereal in a large mixing bowl.
  • Pour melted marshmallows over cereal and mix until well coated.
  • Press cereal mixture into prepared pan.
  • Sprinkle cereal marshmallows, green sprinkles, and gold sequins sprinkles over the top and press lightly.
  • Allow to cool completely before cutting and serving.
  • Cut into 6 equal pieces and serve.


Leftover cereal bars can be stored in an air tight container at room temperature, up to 3 days.


Serving: 1barCalories: 233kcalCarbohydrates: 35gProtein: 2gFat: 10gSaturated Fat: 6gPolyunsaturated Fat: 3gCholesterol: 20mgSodium: 202mgSugar: 15g
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Collage photo of two pictures of cereal bars next to shamrock decorations.

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