Preheat the oven to 350 degrees Fahrenheit and line 2 cupcake pans with liners.

In a large mix bowl, stir together the cake mix, water, vegetable oil and eggs.

Then use a spatula to gently mix in Fruity Pebbles Cereal.

Pour the batter into the cupcake liners, filling them approximately 3/4 full.

Bake for 18-21 minutes until a toothpick inserted into the cupcakes comes out clean.

Cool completely on wire racks.

For the Frosting:

Cream together the butter and powdered sugar until combined and smooth.

Add in the milk and vanilla extract and mix for 1-2 minutes until the frosting is light and fluffy.

Crush 1/2 cup of fruity pebbles by placing it in a food processor and blending until they are finely crushed.

Then gently stir into the frosting.

Pipe the frosting onto each of the cupcakes with a star tip.

Sprinkle Fruity Pebble Cereal on top and then they are ready to serve and enjoy!