Step 1

In a medium-sized bowl, combine together the flour, baking powder, and salt.

Step 2

Add sprinkles and combine with the flour mixture.

Step 3

In a mixing bowl with the paddle attachment, beat the butter and sugar on medium-high until fluffy. Gradually beat in the egg and vanilla.

Step 4

Beat in the flour mixture until just combined.

Step 5

Form the dough into a ball and then divide into half, rolling each ball into a 2 inch wide log. Wrap the logs in wax paper or plastic wrap and chill for about an hour.

Step 6

You can also freeze the cookie logs at this point.

Step 7

Preheat the oven to 350°F.

Step 8

Remove the dough from the refigerator and slice into 1/4 inch rounds.

Step 9

Place them on a parchment lined baking sheet about 1 inch apart.

Step 10

Bake for 10 to 12 minutes or until golden.

Step 11

Transfer to a baking sheet to cool.

Step 12

Combine the powdered sugar together with the milk until smooth.

Step 13

Drizzle the glaze on top of the cookies.