You pour the batter over the crust layer and bake for approx 30-35 minutes. I always check it at 25 mins and then let it go until the top is just barely golden brown and the center still has a little jiggle to it when you move the pan. DO NOT OVER BAKE.
Once it is completely cooled, dust with powdered sugar and cut into squares. These are super fast, portable to take to a picnic but also elegant enough to serve as a dessert. I served these after our Pork Kebab meal the other night, garnished with fresh mint and a couple of fresh raspberries and they really hit the spot!
A few other great combinations that I've tried:
*Use a chocolate cake mix, omit lemon and add some vanilla extract or Kahlua to the filling
*Use a devil's food cake mix, add 2 or 3 T cocoa powder to the filling
*Use a yellow cake mix, add vanilla and almond extract to filling- serve with fresh berries
*Use a red velvet cake mix, add vanilla and almond extract to filling
*Use a spice cake mix (or add pumpkin pie spice to a yellow cake mix) and add 1 cup of canned pumpkin (and one extra egg) to the filling
If you eat 1/3 of a pan of these in one sitting as I've done before, you'll look a little like my cat Caesar after a big meal...