INGREDIENTS
1
Egg, large
2 cups
All-purpose flour
1/2 tsp
Baking powder
1
Buttercream frosting
1 lb
Confectioner's sugar
1/4 tsp
Salt
1 cup
Sugar
1 tsp
Vanilla
1/2 tsp
Vanilla extract, pure
1
Sugar cookies
1/2 cup
Butter, unsalted
1 stick
Butter
5 tbsp
Milk