Preheat oven to 350°F (175°C) and grease a 9-inch cast iron skillet or deep-dish pie plate.
Cream the butter, granulated sugar, and brown sugar in a large bowl until light and fluffy.
Add the eggs one at a time, beating well after each addition, then stir in the vanilla extract.
Combine flour, baking soda, and salt in a separate bowl.
Gradually mix the dry ingredients into the wet ingredients until a thick dough forms.
Fold in the chocolate chips using a spatula.
Press the cookie dough evenly into the prepared skillet.
Bake for 25 to 30 minutes until the edges are golden brown and the center is set but still soft.
Remove from oven and let cool for 10 minutes before slicing.