1 box yellow cake mix
1 sm. box pistachio instant pudding mix
3/4 c. vegetable oil
10 oz. Sprite
4 eggs

In large mixing bowl with electric mixer. Mix all ingredients well. Pour into ungreased 9 x 13 inch pan. Bake at 350 degrees about 40 minutes until toothpick comes out clean.

PINEAPPLE ICING:

Combine in medium saucepan on medium heat 1 1/2 cups sugar and 1 tablespoon flour. Add 2 eggs beaten, 1 stick butter, 1 small can crushed pineapple with juice. Cook until thickened. Add 1 cup cocoa. Pour over hot cake.