1 box yellow cake mix
1 1/4 cup 7 up ( Sierra Mist works also)
3/4 cup vegetable oil ( I used melted coconut oil)
Combine all ingredients and mix well with mixer. Spray 2 (8 inch) cake pans and divide batter. Bake in preheated 350 degree oven for 35-40 minutes testing for doneness. Let cool and frost.
Pineapple Filling for 7-Up Cake
1 (20 ounce) can crushed pineapple, undrained
1 stick butter or margarine or 8 tablespoons or 1/2 cup
1 cup sugar
2 tablespoons all-purpose flour
1 1/2 cups coconut
Mix pineapple, butter, sugar, eggs and flour together. Cook on medium heat until thickens, stirring often. Remove and add coconut. Let cool and spread between cooled cake layers and on top. Keep cake refrigerated.