Lemon Squares
["1 c. flour", "1/2 c. butter, softened", "1/4 c. powdered sugar", "2 eggs", "1 c. sugar", "1/2 tsp. baking powder", "1/4 tsp. salt", "2 tsp. grated lemon rind", "powdered sugar (for topping)"]
["Mix flour, butter and 1/4 cup powdered sugar thoroughly. Press evenly in ungreased 8 x 8 x 2-inch pan, making 1/2-inch edges.", "Bake 20 minutes."]
["flour", "butter", "powdered sugar", "eggs", "sugar", "baking powder", "salt", "lemon rind", "powdered sugar"]