Mint Chocolate Chip Skillet Cookie

Bahan-bahan (8 porsi)

• 14 tablespoons salted butter (1 stick plus 6 tablespoons, softened)
• 1 & 1/3 cups granulated sugar
• 2 eggs
• 10 drops green food coloring
• 1 teaspoon peppermint extract
• 2 & 1/2 cups flour (spooned and leveled)
• 2 teaspoons baking powder
• 1 teaspoon baking soda
• 1 teaspoon cream of tartar
• 1 10 -oz package dark chocolate chips (some of it chopped)