Lemon Bars
["1 c. butter", "2 c. flour", "1/2 c. powdered sugar", "4 eggs, beaten", "1/2 c. lemon juice", "2 c. white sugar", "4 Tbsp. flour", "1 tsp. baking powder"]
["Mix butter, 2 cups flour and powdered sugar and press into 9 x 13-inch pan.", "Bake at 350\u00b0 for 12 minutes."]
["butter", "flour", "powdered sugar", "eggs", "lemon juice", "white sugar", "flour", "baking powder"]