Two huge chocolate chip cookies

Preheat the oven to 350 degrees. Mix butter, sugars, vanilla, and egg yolk until combined. Stir in flour, cornstarch, baking soda, and salt. When a soft dough has formed, stir in the chocolate chips. Roll the dough into two balls and place on a baking sheet – there should be plenty for two large cookies plus a little bit of dough for a snack. (You’re welcome.) You can add more chocolate chips to the top of the cookies if you want.

Bake for 10-12 minutes, depending on your oven temp and desired level of gooey cookie center. Rest the cookies for a few minutes so they settle down and solidify a bit – I set a timer for 10-15 minutes and just let them rest right on the pan. At that point they should be able to transfer to a plate, or maybe even held in your hand, for warm, delicious eating on the couch.