Black Bottom Cupcakes

I have no idea where this recipe originated. It was scrawled on a piece of paper and tucked in a pocket in one of my mom's huge recipe books. I don't think she ever made them, but I have. And they're good.

Ingredients

1 8-ounce package cream cheese, softened
1 egg
1/3 cup sugar
1/8 teaspoon salt
1 cup chocolate chips
1 1/2 cups flour
1 cup sugar
1/4 cup cocoa
1 teaspoon baking soda
1/2 teaspoon salt
1 cup water
1/3 cup vegetable oil
1 tablespoon cider vinegar
1 teaspoon vanilla

Instructions

In a bowl, beat together cream cheese, egg, 1/3 cup sugar, and 1/8 teaspoon salt until light and fluffy. Stir in chocolate chips and set aside. In a large bowl, mix together flour, 1 cup sugar, cocoa, baking soda, and 1/2 teaspoon salt. Make a well in the center and add water, oil, vinegar, and vanilla. Stir together until well blended. Fill lined muffin tins about 1/3 full with batter and top with a dollop of the cream cheese mixture. Bake at 350 degrees for 25-30 minutes.