1 (18.25 ounce) package yellow cake mix
1 (3 ounce) package instant muffin mix
1 (8 ounce) can crushed pineapple with juice
18 bananas
1 cup white sugar
1 (8 ounce) package cream cheese
1/4 cup water
1 tablespoon vanilla extract
1 (8 ounce) package vanilla wafers
Prepare cake according to package directions.
Preheat oven to 350 degrees F (175 degrees C). Grease and flour two 9 inch round pans.
Place cake mix, fruit punch mixture, cream cheese, sugar and cream cheese mixture in large bowl. Beat on high speed until smooth. Add water and vanilla; beat until blended. Pour batter into prepared pans.
Bake in the preheated oven for 1 hour and 10 minutes, or until a toothpick inserted into the center of the cake comes out clean. Allow to cool completely.