Fruity Pebbles Bars

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Just 4 ingredients to make the sweet, fruity, and delicious Fruity Pebbles Bars. A fun twist on a classic for a whole new treat.

stacked fruity pebbles bars on a white plate


Did you have a favorite cereal as a kid? Mine was Golden Grahams, but my brothers’ was Fruity Pebbles. We weren’t allowed to have them very often at all, so when we did they were even more special! And let me tell you, if you even remotely like Fruity Pebbles cereal, you are going to go crazy for these bars. They are just like a Rice Krispie Treat, but they use Fruity Pebbles for an epic twist. Not only are they colorful and fun to serve, they will disappear faster than anything once people try them!

Why You’ll Love These Fruity Pebbles Bars

  • Fun – the rainbow of colors just makes these fun for both kids and adults to enjoy!
  • Easy – you only need 4 ingredients that you can find at any grocery store, so they are super easy to throw together any day of the week.
  • Fast – no baking involved, just melting marshmallows, means these are ready in about 10 minutes.
  • Delicious – if you like a gooey rice krispie treat, these are a whole new level. The fruity cereal just ups the game and makes them something extra tasty.
fruity pebbles bars ingredients

What You’ll Need

  • Fruity Pebbles Cereal
  • Marshmallows
  • Butter
  • Vanilla Extract

How To Make Fruity Pebbles Bars

  • Melt Marshmallows. In a large bowl add the marshmallows together with cubes of butter. Microwave for 1 minute, remove and stir well. For most microwaves this will be enough to melt the butter, if yours isn’t melted enough return for an additional 15 seconds. Add in the vanilla and mix until completely blended.
  • Add Cereal. Pour in the cereal and mix until evenly coated and well blended.
  • Let Set Up. Spread the cereal mixture into a 13×9 inch pan and use a spatula to press into an even layer. You can spray a spatula with non-stick spray if it is sticking. Let the treats set up for a about an hour before slicing to serve.
sliced fruity pebbles treats on a cutting board

Recipe Tips & Suggestions

  • I used a 13×9 inch square pan for these bars, but you really could use an 9 inch square or even an 8-inch square pan. It really depends on how thick or thin you want your bars.
  • Full size marshmallows were what I used for this recipe, but you can use mini marshmallows if that is what you have. They will just melt faster, so make sure to cut your butter into smaller cubes, or use the stovetop so everything melts well.
  • Use fresh cereal. I know this sounds obvious, but sometimes you think mixing with with sugar will cover the stale taste and will work. Trust me, it doesn’t. Buy a new box.
  • To press the bars evenly into the pan, you can spray your spatula with non-stick spray, or you can wet your hands. Just shake off the excess so they are just damp. Once the mixture starts to stick, get them wet again.
stacked fruity pebbles bars on a white plate

How To Store

Cover the pan of Fruity Pebbles Bars with foil or plastic wrap and they will last at room temperature for 3-4 days. They are not something you are going to want to freeze. But you can make them the day ahead and slice when you are ready to serve.

Bars on their last leg? Heat a bar in the microwave for 5-10 seconds just to soften it. Softening the marshmallow will make them gooey and they will last just a tiny bit longer.

fruity pebbles krispie treats sliced on a cutting board

More Easy No Bake Dessert Recipes

cropped close up fruity pebbles bars on a white plate
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Fruity Pebbles Bars

By Erin
Just 4 ingredients to make the sweet, fruity, and delicious Fruity Pebbles Bars. A fun twist on a classic for a whole new treat.
Prep: 10 minutes
Additional Time: 1 hour
Total: 1 hour 10 minutes
Servings: 20


  • 6 Tablespoons butter, cut into cubes
  • 12 oz marshmallows
  • 1 teaspoon vanilla extract
  • 6 cups Fruity Pebbles cereal


  • Spray a 13×9 inch baking dish with non-stick spray. Set aside.
  • Add marshmallows and butter to a large mixing bowl and place in the microwave for 60 seconds. Remove and stir until completely melted. If necessary heat again for 20 seconds.
  • Add vanilla extract and mix until fully combined.
  • Pour in cereal, mix until the cereal is evenly coated.
  • Press mixture into a sprayed 13×9 inch baking dish. Wet your hands (shake off any excess water) and press mixture evenly into the pan, or spray your spatula with non-stick spray.
  • Let bars set up for at least an hour before slicing.


Serving: 1g | Calories: 129kcal | Carbohydrates: 23g | Protein: 1g | Fat: 4g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Cholesterol: 9mg | Sodium: 98mg | Sugar: 14g

Nutrition information is automatically calculated, so should only be used as an approximation.

Additional Info

Author: Erin
Prep Time: 10 minutes
Additional Time: 1 hour
Total Time: 1 hour 10 minutes
Course: Dessert Recipes
Cuisine: American
Servings: 20
Calories: 129
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About Erin S

Welcome to Dinners, Dishes, & Desserts where my love of food meets my busy life. My name is Erin and I’m a casual home cook who loves to feed people. On this blog, you’ll find hundreds of quick and easy recipes made mostly from scratch. My days are spent in the kitchen, creating new recipes to share with family and friends.

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