1 package Duncan Hines pineapple cake mix
1 package pineapple pudding mix or vanilla pudding mix
3/4 cup vegetable oil
10 ounces 7-Up
1 1/2 cups sugar
2 tablespoons flour
1 stick margarine
1 large can crushed pineapple
1 can coconut
Mix all ingredients and beat well. In a greased and floured 9×13-inch pan, bake at 350 degrees until done.
Mix all together except coconut. Cook over medium heat, stirring constantly, until it thickens. Remove from heat and beat well. Add coconut and beat until thick enough to spread on cake.