Ingredients

• 6 tablespoons unsalted butter, room temperature


• 1/3 cup packed dark-brown sugar


• 1/2 cup granulated sugar


• 1 large egg


• 1 teaspoon pure vanilla extract


• 1 cup all-purpose flour (spooned and leveled)


• 1/2 teaspoon baking soda


• 1/2 teaspoon coarse salt


• 1 cup semisweet chocolate chips

Directions

• Preheat oven to 350 degrees.


• In a large bowl, combine butter and sugars with a wooden spoon.


• Stir in egg and vanilla.


• Stir in flour, baking soda, and salt.


• Stir in chocolate chips.


• Transfer to a 10-inch cast-iron skillet; smooth top.


• Bake 18 to 20 minutes. until cookie is golden brown and just set in the center, Let cool 5 minutes.