Fruity Pebbles frosting is fun, pretty, and nostalgic! Surprisingly, it's also not too sweet, so feel free to pipe it on cupcakes, spread it over a batch of brownies, sandwich it between French macarons--whatever your sweet tooth desires!
Place ⅓ cup of cereal in a small bowl and pour milk evenly overtop. Allow to soak for 20 minutes.
⅓ cup + 2 Tablespoons Fruity Pebbles cereal, ⅓ cup whole milk
Meanwhile, chop white chocolate into small pieces and place in a microwave-safe bowl. Microwave for 30 seconds, stir, then return to the microwave, heating in 15-second increments and stirring well in between until melted and smooth. Allow to cool until no longer warm, but still melted.
4 oz white chocolate
Place butter in a separate, large mixing bowl and use an electric mixer to beat until smooth and creamy. Once chocolate is cooled, drizzle it in with the butter and stir until smooth and well-combined.
1 cup unsalted butter
Gradually add powdered sugar, stirring until completely combined.
2 cups powdered sugar
Add salt and stir well.
⅛ teaspoon salt
Pour the cereal and milk through a fine mesh strainer into a measuring cup. Use a spatula to squeeze out as much milk as you can and discard cereal.
Measure out 2 Tablespoons of milk and add to the frosting bowl. Stir on low-speed until smooth and incorporated.
Grind remaining 2 Tablespoons of fruity pebbles into fine crumbs (I use my small food processor). Add to the frosting and use a spatula to stir in until smooth and well combined.
Pipe or spread frosting as desired over cooled baked goods.
Notes
Serving
This recipe makes 2 cups of frosting. It will cover 12 cupcakes, or will cover a two 8” or 9” layer cake or 13x9 cake (without extra for decorating). It will fill approximately 40 macarons.
Storing
Store in an airtight container at room temp for up to 3 days or in the fridge for up to 5. After refrigerating you will need to let it soften to near room temperature before you’ll be able to spread or pipe it. Note that this is a soft icing and it won’t hold up well to heat.