Lime Cooler Bars
["2 1/2 c. flour, divided", "1/2 c. powdered sugar", "3/4 c. cold butter or margarine", "4 eggs", "2 c. sugar", "1/3 c. lime juice", "1/2 tsp. lime peel", "1/2 tsp. baking powder", "additional powdered sugar"]
["In a bowl, combine 2 cups flour and the powdered sugar. Cut in butter until mixture resembles coarse crumbs. Pat into a greased 9 x 13 pan. Bake at 350\u00b0 for 20 minutes or until lightly browned."]
["flour", "powdered sugar", "cold butter", "eggs", "sugar", "lime juice", "lime peel", "baking powder", "additional powdered sugar"]