Powder Sugared Cookies

Yummy iced cinnamon sugar cookies! Got another order for these! Ingredients: 1 1/2 cups softened butter 1 1/2 cups sugar 3 eggs 1 1/2 tsp vanilla 4 1/2 cups flour 3 tsp baking powder 1 tsp cinnamon Cinnamon Sugar Mixture: 1/2 cup sugar 1 tsp cinnamon Cinnamon Buttercrea