Cast Iron Skillet Cookie (Pizookie) (VIDEO)

Ingredients

• 8 Tbsp. unsalted butter
• 1 1/4 cup All Purpose Flour
• 1/2 tsp. baking powder
• 1/2 tsp. baking soda
• 1/2 tsp. sea salt
• 1 large egg
• 1/2 cup brown sugar, packed
• 1/4 cup granulated sugar
• 1 Tbsp. milk
• 1 tsp. vanilla extract
• 4 oz. semi-sweet chocolate chunks
• 1/2 cup milk chocolate chips
• 1 Tbsp. softened butter to grease cast iron