01 -
Beat the softened butter, granulated sugar, and brown sugar together until fluffy.
02 -
Mix in the eggs and vanilla extract until well combined.
03 -
In a separate bowl, whisk together the flour, baking powder, baking soda, and salt. Gradually mix the dry ingredients into the wet mixture.
04 -
Stir 1/4 cup of the rainbow sprinkles into the cookie dough.
05 -
Roll the dough into balls, then roll each ball in the remaining sprinkles to fully coat.
06 -
Place the sprinkle-coated dough balls onto a baking sheet and bake at 350°F (175°C) for 10–12 minutes. Let them cool completely before serving.