1/4 c. softened butter
1/4 c. light brown sugar
1/2 c. Karo syrup
12 slices well-drained pineapple
1 pkg. white or yellow cake mix

Preheat oven to temperature directed on cake mix. Blend butter, sugar, Karo on 9x13x2 inch pan. Arrange pineapple on mixture. Heat in oven 15 minutes.

Meanwhile, mix cake as directed on box. Pour batter over fruit mixture. Bake 45 to 55 minutes or until cake is done. Remove from oven and invert onto rack. Let stand 1 minutes. Remove pan.