Lemon Bars
["2 c. flour", "1 c. margarine, softened", "1/2 c. powdered sugar", "4 eggs", "2 c. granulated sugar", "4 Tbsp. lemon juice", "1 tsp. baking powder", "1/2 tsp. salt"]
["Mix first 3 ingredients with mixer and press in ungreased 9 x 13-inch pan.", "Bake 20 minutes.", "Beat remaining ingredients about 3 minutes or until light and fluffy.", "Pour over hot crust.", "Bake about 25 minutes longer or just until no imprint remains when touched lightly in center.", "Cool before cutting into squares. Sprinkle with powdered sugar."]
["flour", "margarine", "powdered sugar", "eggs", "sugar", "lemon juice", "baking powder", "salt"]