3 c. flour
2 c. sugar
2 tsp. baking soda
1 tsp. salt
1/2 c. cocoa
2 c. water
1 c. oil
2 tsp. vinegar
1 tbsp. vanilla
16 oz. chocolate chips

Mix first 10 ingredients and pour into greased and floured sheet cake pan.

8 oz. cream cheese
1 egg
2/3 c. sugar
Pinch of salt

Mix last 4 ingredients - spoon it over the cake batter and swirl it around with a knife. Dark, rich and tasty.