Preheat oven to 350 degrees F.
Melt butter in a 10 inch cast iron skillet over medium heat. Pour melted butter into a mixing bowl and set skillet aside. (If you are using a baking dish instead of skillet, butter can be melted in the microwave)
Stir brown sugar into the melted butter.
Add eggs and vanilla; mix well.
Add flour, baking soda and salt; mix until combined.
Stir in chocolate chips and Hershey kisses
Press half of the cookie dough into the skillet and cover with caramel sauce.
Then top with the remaining cookie dough – you may have to evenly press this into the pans with your hands. (If you are not using caramel, press all dough into the skillet at once)
Bake for 25-30 minutes or until edges golden brown and caramel is bubbly.
Serve hot and top with your favorite ice cream!