3-D Christmas Tree Cookies

INGREDIENTS

For the sugar cookies:

2 cups

all purpose flour, plus more for rolling

1/2 tsp

baking powder

1/4 tsp

salt

1/2 cup

unsalted butter (1 stick), room temperature

1 cup

sugar

large egg

1 tsp

vanilla extract

For the buttercream icing:

1 cup

unsalted butter (2 sticks), room temperature

1 tsp

vanilla extract

4 cups

sifted powdered sugar

2 tbsp

milk

drops of green gel food coloring

Assorted sprinkles, silver dragees and crushed candy cane