01 - 
                Preheat oven to 350°F. Spray a 9x13 cake pan with non-stick spray or line it with foil.
              
              
              
                02 - 
                In a large mixing bowl, mix cake mix, melted butter, and eggs with a sturdy spoon until well blended. (It will be thick like a cookie dough.)
              
              
              
                03 - 
                Use your fingers or a bench scraper to press dough into the prepared pan.
              
              
              
                04 - 
                In a mixing bowl, beat cream cheese and two cups of powdered sugar on low speed until smooth. Add eggs and vanilla and beat on low speed until blended. Add remaining 1 ½ cups powdered sugar and beat until blended. Pour over cake bottom and spread to the edges of the pan.
              
              
              
                05 - 
                Bake for 35 to 40 minutes or until topping is set and golden brown and it's pulling away from the sides of the pan. Cool completely in the pan.
              
              
              
                06 - 
                To serve, cut into squares and sprinkle top with additional powdered sugar if desired.