preheat oven to 350 degrees

Heat a 12 inch cast iron skillet over high heat on the stove.

Have everything ready to go into the skillet (all measured out) you'll be adding the items quickly.

Place the sugars in one bowl, the dutch cocoa, dry buttermilk flavors, flour, baking soda and salt in another bowl, beat the egg in a separate bowl and have the chips measured out.

When the skillet is hot, turn it to medium heat.

Add the butter and once it's all melted whisk in the sugars

then pour in the flour mixture and whisk or mix with a spatula, when it's half way mixed add in egg, then finish mixing.

Stir in chips and press smoothly into a skillet with a spatula.

Bake for 15 minutes, or until a toothpick inserted into 2 inches from the edge of the skillet comes out clean. Don't over bake or it will become dry as the skillet cools.