Save to Pinterest This quick frosting comes together in about 10 minutes: beat softened butter until creamy, add sifted powdered sugar, then fold in finely crushed Fruity Pebbles with vanilla and a splash of milk until light and pipeable. Reserve whole cereal for garnish. Yields roughly 2 cups to frost a dozen cupcakes. Swap plant-based butter and non-dairy milk for a dairy-free version.
My niece walked into the kitchen last Saturday morning still in her pajamas, pointed at the box of Fruity Pebbles on the counter, and asked if we could put them on everything forever.
We ended up frosting an entire batch of vanilla cupcakes before noon, and she ate two of them standing right at the counter with frosting on her nose the whole time.
Ingredients
- Unsalted butter (1/2 cup, softened): Let it sit out for about an hour so it creams smoothly without any stubborn lumps.
- Powdered sugar (2 cups, sifted): Sifting is the one step you should never skip here, unless you enjoy chewing on tiny sugar rocks in your frosting.
- Milk (2 to 3 tablespoons): Start with two tablespoons and add the third only if the frosting feels too stiff to spread.
- Vanilla extract (1 teaspoon): A good quality extract rounds out the sweetness and keeps the cereal flavor from tasting flat.
- Fruity Pebbles cereal (1 cup, divided): You will crush most of it into the frosting and save the rest for a crunchy, colorful finish on top.
Instructions
- Crush the cereal:
- Pulse three quarters of a cup of Fruity Pebbles in a food processor or blender until they become a fine, fragrant dust that smells like a fruit stand exploded. Set the remaining quarter cup aside for garnish.
- Beat the butter:
- In a large mixing bowl, beat the softened butter with a hand mixer or stand mixer until it is creamy, pale, and completely smooth with no cold chunks hiding in the corners.
- Add the sugar gradually:
- Pour in the powdered sugar on low speed so it does not billow out of the bowl like a sweet kitchen snowstorm all over your counter.
- Bring it all together:
- Add the crushed cereal, vanilla extract, and two tablespoons of milk, then beat until the frosting turns fluffy and takes on a soft speckled rainbow color throughout.
- Adjust the consistency:
- If the frosting feels too thick to spread or pipe, add one more tablespoon of milk and beat again until it reaches that perfect billowy texture.
- Frost and garnish:
- Spread or pipe the frosting onto fully cooled cupcakes, cake, or cookies, then scatter the reserved whole Fruity Pebbles over the top while the frosting is still soft so they stick.
Save to Pinterest That afternoon my niece declared it the best day of her entire life, and honestly I understood exactly what she meant.
Making It Dairy Free
Swap the butter for your favorite plant based stick butter and use oat or almond milk instead of regular milk, and the flavor stays just as fun and fruity.
Best Cake Pairings
This frosting shines on vanilla and strawberry cakes, but spread it on funfetti and you get a double hit of playful color that makes every slice feel like a celebration.
The trick is tasting as you go and trusting your instincts over the recipe, because humidity and temperature can change everything in your kitchen on any given day.
- If the frosting looks too runny, beat in a small handful of extra powdered sugar to bring it back.
- A couple drops of food coloring can push the rainbow vibes even further if you want bolder color.
- Always frost on a completely cooled cake so nothing slides off.
Save to Pinterest Keep leftover frosting in the fridge and let it come back to room temperature before rewhipping it into shape.
Your Recipe Questions Answered
- → How finely should I crush the Fruity Pebbles?
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Pulse about 3/4 cup in a food processor until finely crushed but not powdered—small bits add color and a pleasant crunch while blending smoothly into the butter-sugar base.
- → What texture should the frosting have for piping?
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A light, pipeable texture is achieved by beating butter until creamy, adding powdered sugar gradually, then adding 2–3 tablespoons of milk. Adjust one tablespoon at a time until it holds its shape yet still pipes smoothly.
- → Can I make this dairy-free?
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Yes. Use plant-based butter and non-dairy milk; the technique is the same. Chill briefly if the vegan butter is softer than dairy butter to help the frosting set before piping.
- → How do I prevent the cereal from going soggy on the cupcake?
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Sprinkle reserved whole Fruity Pebbles on top just before serving. If you need to prepare ahead, keep the garnish separate and add right before presentation to retain crunch.
- → How much does this yield and what does it pair with?
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Yields about 2 cups, enough to frost 12 cupcakes. It pairs beautifully with vanilla, strawberry, or funfetti bases where the cereal's fruit notes complement the cake.
- → Any tips for extra vibrant color?
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Stir in a drop or two of gel food coloring while mixing for an amplified hue without changing texture. Use gel rather than liquid to avoid thinning the frosting.
