Combine the chocolate chunks or chocolate chips with the 2 tablespoons of flour. Set aside.
Combine the cake mix, eggs, milk, vegetable oil and baking powder together in a bowl.
After the batter has been combined, then stir in the chocolate chunks; reserving a few.
Spoon into prepared muffin cups.
Bake in a 375 degree preheated oven for about 10 minutes. Remove the tray from the oven and sprinkle a few extra pieces of chocolate on top then return to the oven to complete baking.for an additional 20 minutes or until a toothpick inserted into the middle of the muffin comes out clean.
Allow to cool in the pan for about 5 minutes before removing to a wire rack.
Notes
Do not prepare the cake mix according to the directions on the back of the box. Follow the directions listed above.
Depending on the size of your muffin pan, this recipe should make 12 to 16 muffins.
To prevent your chocolate chunks from sinking, lightly dust them with a tablespoon of flour before adding them to the batter. If they're not fully coated, add another teaspoon or two, but avoid using too much extra flour. This light coating will help the chocolate stay suspended in your muffins as they bake.