Weigh out ingredients
You'll need GF flour, cornstarch, baking soda, salt, sugars, butter, vanilla, egg, chocolate, and sea salt.
Mix the dough
Beat the sugars and butter on medium-high speed until light. Add in the vanilla and egg and beat until fully combined. Add in the dry ingredients and mix on low speed until just combined. Lastly, fold in the chocolate.
Scoop & Chill
With a small cookie scoop, place balls of cookie dough on one baking sheet, top each with more chopped chocolate, and freeze for at least 15 minutes.
Bake and enjoy!
While the dough is in the freezer, preheat the oven to 325 degrees F. Place the cookie dough 2 inches apart on a parchment lined baking sheet and bake for about 12 minutes.