Valentine Stained Glass Hearts
["1/2 c. butter, softened", "3/4 c. sugar", "2 eggs", "1 tsp. vanilla", "2 1/3 c. flour", "1 tsp. baking powder", "red hard candies, crushed", "frosting (optional)"]
["Cream butter and sugar; add eggs and vanilla.", "Beat.", "Stir in flour and baking powder until dough is very stiff.", "Cover and chill for 3 hours or more."]
["butter", "sugar", "eggs", "vanilla", "flour", "baking powder", "red hard", "frosting"]