I've made a recipe very similar to this. For the crust I used a 13 x 9 cake pan size box cake mix with a stick of margarine. Cut the margarine into the cake mix and press it on the bottom of the 13 x 9 cake pan. the toppings can be anything, reeces pieces, chocolate chips, m & m's. chopped walnuts, anything you have on hand. The trick is the spreading of the sweetened condensed milk. Bake it for 25 to 35 minutes at 350 degrees farenheight or until the top is golden brown. It's delicious with any toppings!!