Pineapple-Upside Down Cake
["1/2 cup margarine", "1 cup brown sugar", "1 (20 oz.) can crushed pineapple in its own juice, drained; save juice", "1 box yellow cake mix"]
["Melt margarine in 13 x 9 inch pan.", "Sprinkle brown sugar on top.", "Top with pineapple.", "Mix cake using juice as part of water. Pour batter over pineapple.", "Bake at 350 degrees for 35-40 minutes.", "When done immediately invert onto cookie sheet.", "Frost cake with pineapple brown sugar on bottom of pan."]
["margarine", "brown sugar", "pineapple", "yellow cake mix"]