Preheat oven to 190°C (375°F).

Beat cream cheese and 2 tablespoons sugar together until smooth and set aside.

In a large bowl, combine flour, chocolate chips, 1/2 cup sugar, cocoa, baking powder, and salt.

Make a well in the center of the dry ingredients.

Pour in the beaten egg, melted butter, and milk.

Stir until just moistened.

Spoon some chocolate batter into each muffin tin.

Drop 1 teaspoon of cream cheese mixture on top of the batter in each muffin tin.

Cover the cream cheese mixture with more chocolate batter.

Bake for 15-20 minutes, or until the muffins are springy to the touch.