Lemon Squares
["1 c. flour", "1/2 c. margarine", "1/4 c. powdered sugar", "2 eggs", "1 c. sugar", "1/2 tsp. baking powder", "1/4 tsp. salt", "2 Tbsp. lemon juice"]
["Mix flour,", "margarine and powdered sugar thoroughly.", "Press evenly in bottom of an 8 or 9-inch ungreased pan.", "Bake in a preheated 350\u00b0 oven for 20 minutes."]
["flour", "margarine", "powdered sugar", "eggs", "sugar", "baking powder", "salt", "lemon juice"]