Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper.

In a large mixing bowl, beat together the butter, granulated sugar, and brown sugar until light and fluffy, about 3-5 minutes.

Add the eggs one at a time, mixing well after each addition. Pour in the vanilla extract and mix well.

Gradually add the flour, mixing on low speed until just combined.

Fold in the Fruity Pebbles cereal until evenly distributed.

Using a cookie scoop, drop mounds of dough onto the prepared baking sheets, spaced about 2 inches apart. Bake for 10-12 minutes.

Allow to cool on the baking sheet for 5 minutes before transferring to a wire rack. Frost and decorate before serving.