Preheat oven to 350F
Line 24 muffin pans with paper cups, and spray those with non-stick spray.
Combine cream cheese, sugar, salt with an electric mixer on medium.
Add the egg and mix well.
Fold in chocolate chips and set aside.
In another mixing bowl, whisk flour, sugar, salt, baking soda, and cocoak.
Add oil, water, vinegar, vanilla, and mix until smooth.
Place 2 tbsp batter in each paper liner, and top with 1 tbsp cream cheese mix.
Baking until edges are firm to the touch, approx 25-30 minutes.
Let cool in pan for 20 minutes, then transfer to wire rack to cool completely.