- Preheat an oven to 360°F (180°C). Line 2 heavy baking sheets or sheet pans with parchment paper.
- In a medium saucepan over the lowest heat possible, melt the butter. There should be no sizzle, crackling, or pops; let the butter ooze into liquid, without boiling, so minimal moisture is lost. Stir regularly, until the butter is almost completely melted. (This is a good time to chop the chocolate.)
- In a bowl, whisk together the flour, baking powder, baking soda, and kosher salt. Set aside.
- Pour the melted butter into a large bowl and whisk in the sugars. The mixture may look like it will seize, but it will relax with a few seconds of stirring. Add the eggs, one at a time, whisking briskly after each addition, but only to combine. Stir in the vanilla. Use a wooden spoon or silicone spatula to stir in the dry ingredients.
- Once mostly blended, fold the chocolate into the dough until the remaining flour is incorporated, and the dough no longer looks dusty. Bring any stray ingredients up from the bottom of the bowl. Do not overmix.
- If the dough seems warm or looks overly glossy, refrigerate for 5 minutes. Then roll into balls using 3 tablespoons of dough for each. Arrange on the prepared pans, leaving 3 inches (7.5 cm) in between each. Sprinkle with sea salt. Bake until the tops are cracked and lightly golden, yet the cookies are still soft at the center, 10 to 12 minutes, rotating the pan halfway through cooking. Leave the cookies on the sheet pan for 2 minutes, then transfer to a wire rack to cool. Continue shaping and baking cookies with the remaining dough, making sure to use a cold sheet pan for each batch.
- The cookies can be kept at room temperature in an airtight container for up to 1 week.
Thin and Crunchy Variation: For a thinner, crunchy-through- and-through cookie, use 3 cups plus 2 tablespoons (390 g) flour.
Shiny and Crisp Variation: For a shinier cookie with a crisp surface and edge, decrease the brown sugar to 1¼ cups (265 g) packed light brown sugar and increase the granulated sugar to 3/4 cup (150 g).
Whole Wheat Variation: Some or all of the all-purpose flour can be replaced with whole wheat or rye. It will, of course, change the texture and look of the finished cookie, but is worthy of a try.
Nutty Variation: This amount of dough can accommodate 3/4 cup (75 g) chopped walnuts or pecans.
Kitchen Tip: Tara prefers baking batches one tray at a time, but two pans can be baked together, one on a rack in the upper third, and one in the lower. Rotate the pans from top to bottom and front to back once while baking. To make ahead, shape the dough in scoops or logs, wrap tightly, then seal in bags, and keep in the freezer for up to 3 months. Frozen scoops can be baked without defrosting, while logs should be held in the fridge until soft enough to slice. Reduce the oven temperature to 330°F (165°C) and increase the baking time as needed.
Excerpted from Seven Spoons: My Favorite Recipes for Any and Every Day by Tara O’Brady. Copyright © 2015 Tara O’Brady. Published by Appetite by Random House®, a division of Penguin Random House Canada Limited. Reproduced by arrangement with the Publisher. All rights reserved.
How To Make A Skillet Chocolate Chip Cookie