Lemon Chess Bars 1 box cake mix (can use yellow or lemon) 3 eggs 1 stick melted butter 1 package cream cheese 1 pound powdered sugar Mix the cake mix, melted butter, and 1 egg together. Press into an ungreased 9 x 13 cake pan. Mix the cream cheese, powdered sugar, and 2 eggs. Pour over the top. Bake at 350 degrees for 40 - 50 minutes.