My husband had a sweet tooth one night and was begging me to make him something sweet. All I had in my Pantry was a Yellow Cake Mix and jar of Pineapple Jam. These bars are the result of that request and we have made them several times since with a few variations. I have added some peanut butter in place of some of the butter to the cake mix and used a strawberry jam instead for delicious PB & J bars. Exchanging Lemon Cake Mix and Raspberry Jam for the main ingredients is another fine variation. I hope you enjoy this easy recipe.