You will need:

1/2 cup butter, softened

1/2 cup sugar

3 large eggs

1 tsp vanilla extract

2 cups flour

1 tbsp baking powder

1/4 cup milk

1 cup powdered sugar

2 tbsp milk (for glaze)

Sprinkles for decoration

Preheat oven to 350°F (175°C). Cream butter and sugar until light and fluffy. Add eggs one at a time, then stir in vanilla. In a separate bowl, combine flour and baking powder. Gradually add dry ingredients to the butter mixture, alternating with milk. Roll dough into small balls and place on a baking sheet. Bake for 10-12 minutes, or until edges are lightly golden.

For the glaze, mix powdered sugar and milk until smooth. Dip each cookie top in glaze, then add sprinkles.