Preheat oven to 325 degrees F. Grease a mini 6-inch cast iron skillet with non-stick spray or oil. Set aside.
In a medium bowl stir together melted butter and both sugars. Stir in egg and vanilla until combined. Stir in flour, baking soda and salt; mix well. (Batter will be a consistency like cake batter) Stir in chocolate chips.
Pour batter into prepared skillet. Spread out evenly. Bake 13 to 15 minutes, or until golden brown.
Serve with a scoop of vanilla ice cream and drizzles of caramel and chocolate sauce. Enjoy!