2 sticks unsalted butter, softened
1 cup brown sugar
1 cup granulated sugar
1 tsp vanilla
1 tsp baking soda
1 tsp salt (plus more for sprinkling)
2 1/2 cups flour
2 cups semisweet chocolate chips
Preheat oven to 325 and grease a ten inch cast iron skillet with cooking spray.
Cream together the butter and the sugar until fluffy, then add the eggs one by one---beating after each addition. Add the vanilla and mix until incorporated.
In another bowl, whisk together the flour, salt and baking powder. Add to the butter and sugar and blend lightly. Add the chocolate chips.
Press the cookie dough down into your greased skillet evenly and smooth the top with your hand. Sprinkle additional sea salt over the top.
Bake for 45 minutes until very puffy and golden.
Let pie cool completely before cutting. Serve alone or with ice cream!