Step 1Combine the butter, brown and granulated sugars, eggs, vanilla, salt, baking soda, flour and chocolate. Chill the batter 20 to 30 minutes (or refrigerate up to three days).
Step 2Heat the oven to 375 degrees. Stack 2 baking sheets together and line the top one with parchment paper.
Step 3Place big gobs of dough on the baking sheet (about 3 tablespoons full) 2 inches apart.
Step 4Bake the cookies until they're puffed up and set, 12 to 14 minutes. Let them rest on the sheet before removing, about 10 minutes.