Nutella Stuffed Deep Dish Chocolate Chip Skillet Cookie (Pizookie)

Bahan-bahan (16 porsi)

• 1/2 cup butter (softened)
• 1/2 cup light brown sugar (lightly packed)
• 1/3 cup granulated sugar
• 2 teaspoons vanilla extract
• 1 egg (large)
• 1 cup flour (all purpose or plain flour)
• 1/2 teaspoon baking soda
• 1/3 teaspoon salt
• 1/2 cup dark/semi-sweet chocolate chips
• 1/2 cup nutella (melted, or this Refined Sugar-Free Nutella Spread)