Prepare cake mix by adding 1 egg and 1 stick of margarine. Press into pan.
Mix with mixer ... softened Cream Cheese, remaining 2 eggs, then add confectioners sugar (reserve enough to dust lightly over finished cake ... approx.2 Tablespoons) mix well and add remaining stk. of melted margarine ... stir well,stir in vanilla.
Pour over batter in the pan. Bake 40 - 50 minutes without opening oven door ... When done cake will look Fluffy ... after it cools,give it a light dusting of the confectioners sugar. Enjoy!
This is also good with Chocolate cake mix and a lite sprinkle of coconut (or 1/3 cup choc. chips) in cream cheese mixture or lemon cake mix and just a little lemon juice in cream cheese mixture ... use your imagination!