Ingredients for Filling: One 8-ounce package cream cheese 1 egg, unbeaten 1/3 cup sugar 1/8 teaspoon salt One 6-ounce package chocolate chips chopped nuts Ingredients for Batter: 1-1/2 cups flour 1 cup sugar 1/4 cup cocoa 1 teaspoon soda 1/2 teaspoon salt 1 teaspoon vanilla 1 cup water 1/3 cup cooking oil Filling: Combine filling ingredients except chips and nuts; beat until well blended.