Preheat oven to 350F. Spray 2 6-inch cast-iron skillets with nonstick cooking spray.

In a small bowl, cream together the butter and dark brown sugar. Beat in the egg, vanilla and corn syrup.

Sprinkle the baking powder and soda over top, stir. Add in the flour and mix until combined.

Fold in the chopped Oreos and chocolate chunks.

Divide the dough between prepared skillets.

Bake in preheated oven for 10 minutes. Top with ice cream while still hot and serve immediately.