Mother's Pineapple Upside Down Cake From the kitchen of Aunt Loretta

Cream shortening, add sugar gradually, then beaten egg yoks; mix; sift dry engriedients and add; mix well. fold in beaten egg whites & vanilla. drain pineapple, melt butter in black frying pan, spread brown sugar in pan, add pineapple, pour in batter. Bake at 350 degree oven 45 minutes. turn upside down on cake plate. Your grandmother always used a green plate