Prepare cake mix as directed and pour into a 13 x 9 baking dish - set aside.
Blend ricotta cheese, eggs & sugar together with mixer. Spoon on top of cake mixture (use tablespoons).
Bake at 350 degrees F for 1-hour. If cooking in a glass baking dish, I find that the cooking time should be longer and so I turn the oven off and let cake set in oven for another 15 minutes or until done in the middle.