Prepare the Manischewitz® Extra Moist Chocolate Cake according to directions. Set batter aside. In a separate bowl, mix together the cream cheese, egg, sugar, and salt. When the cream cheese batter is combined well and has a creamy consistency, add the chocolate chips and mix again.
Fill each muffin tin cup 1/3 full with the chocolate batter and then top with a generous dollop of the cream cheese batter. Bake for 25 to 30 minutes in a 350 degree F oven.