Ingredients
1egg
1cupsugar
½cupbrown sugar,packed
1½sticksunsalted butter
2tspvanilla extract
2cupsall-purpose flour
1tspbaking powder
½tspbaking soda
3tbsppowdered milk
¾cupwhite chocolate chips
¾cuprainbow sprinkles
Preparation
Beat the butter, sugar and brown sugar together until light and fluffy for 3 minutes.
Add the egg and vanilla; beat until fully combined.
Sift together the flour, baking powder, baking soda and powdered milk.
Add to the stand mixer and combine on low speed.
Add in the white chocolate chips and sprinkles. Mix gently.
Refrigerate dough for 30 minutes (at least 30 minutes, but up to 2 days is even better).
When you are ready to bake, preheat the oven to 350 degrees F.
Using a 1-tablespoon measure, scoop rounded tablespoons and roll into balls.
Bake for 10 to 12 minutes.