1 box fudge swirl cake mix
1/3 c. butter
1 egg
2/3 c. sugar
2 eggs
2 (8 oz.) pkg. cream cheese
2/3 c. sour cream
2/3 c. water
1 tsp. vanilla

Soften cream cheese at room temperature. Heat oven to 350 degrees F. Grease 13 x 9 inch pan. Reserve 1 cup of cake mix and swirl packet. Combine remaining mix, butter and 1 egg. Mix until a soft dough forms. Press into bottom of pan. Bake for 10 minutes.

Combine remaining mix with other ingredients. Reserve 1/3 of this mix and add it to the swirl packet. Pour yellow mix into pan. Drop chocolate mixture by spoonfuls onto yellow mixture. Pull a knife in an S shape through the chocolate to form swirls. Bake for 25 minutes. Cool completely.