Step 1

Preheat oven to 350°.

Step 2

Cream butter and brown sugar until light and fluffy, about 3 minutes.

Step 3

Beat in egg and vanilla.

Step 4

Whisk dry ingredients together in another bowl.

Step 5

Gradually beat into creamed mixture.

Step 6

Place sprinkles in a bowl.

Step 7

Shape dough into 1-in. balls.

Step 8

Dip tops in sprinkles.

Step 9

Place 2 inches apart on ungreased baking sheets covered with parchment paper.

Step 10

Press a deep indentation in center of each with your thumb or a round measuring spoon.

Step 11

Bake until edges are light brown, 10-12 minutes.

Step 12

Reform any indentations that may have closed.

Step 13

Remove to wire racks to cool.

Step 14

Bring sugar, butter, and milk to a boil in a small saucepan, stirring constantly.

Step 15

Cook and stir 1 minute.

Step 16

Remove from heat. Add candy coating and vanilla; stir until smooth.

Step 17

Divide filling between 3 bowls.

Step 18

Using food coloring paste add red to one bowl and green to another. Leave the third one white.

Step 19

Whisk until smooth.

Step 20

Carefully spoon fillings into indentations.

Step 21

Refrigerate until set.