1 pkg. marble cake mix
1/3 c. butter, softened
1 egg
2 (8 oz.) pkgs. cream cheese, softened
3/4 c. sour cream
1/3 c. water
2/3 c. sugar
2 eggs

Heat oven to 350 degrees. Grease 13 x 9 x 2 inch pan. Reserve 1 cup dry cake mix. Blend remaining dry cake mix, butter, and 1 egg on low speed until dough forms. Pat in bottom of pan. Bake until golden and crust begins to pull away from sides of pan, 15-20 minutes. Beat cream cheese and sour cream until smooth. Blend reserved cake mix, water, sugar, and 2 eggs into cream cheese mixture on low speed 30 seconds. Beat on medium speed 2 minutes.

Reserve 1 1/4 cups cream cheese mixture; pour remaining mixture over crust. Blend reserved cream cheese mixture and marbling mixture on low speed. Drop batter by tablespoonfuls onto batter. Cut through batter with knife in S-shape curves. Turn pan 1/4 turn; repeat. Bake 31-36 minutes. Cool completely. Refrigerate until firm. Keep refrigerated.