Lemon Squares
["1 stick butter or margarine", "1/2 c. powdered sugar", "1 c. plain flour, sifted", "1 c. sugar", "1/2 tsp. baking powder", "2 eggs, beaten", "3 Tbsp. fresh lemon juice", "2 Tbsp. plain flour"]
["Preheat oven to 350\u00b0.", "Spray a 9-inch pan with Pam.", "Mix butter, flour and powdered sugar.", "Pat into bottom of pan.", "Bake at 350\u00b0 for 15 minutes or until lightly brown."]
["butter", "powdered sugar", "flour", "sugar", "baking powder", "eggs", "lemon juice", "flour"]