Chocolate Chip Cookies

Method

1. mix4 min
   medium speed, butter at cool room temperature
   butter + brown sugar + granulated sugar, until visibly paler and increased in volume — the sugar crystals are cutting air pockets into the fat, and those pockets are the only leavening that matters before the soda kicks in. Butter warmer than about 68°F is too slack to hold them and the cookies spread flat.
2. mix1 min
   medium speed
   + egg + vanilla, beating until the mixture looks glossy and unified rather than curdled — a cold egg breaks the emulsion and the fat weeps out during baking
3. fold2 min
   low speed or by hand, just combined
   + flour + baking soda + salt, stopping the moment no dry streaks remain. Every extra turn develops gluten, and gluten in a cookie reads as tough and cracker-like rather than tender.
4. fold1 min
   by hand
   + chocolate chips + almonds, distributing without further working the dough
5. rest30 min
   covered, refrigerated
   the dough, so the flour fully hydrates and the butter re-firms — cold fat melts later in the oven, which means the cookie sets its edges before the center collapses. Longer is better: up to 72 hours deepens the flavor as enzymes break starch into sugars.
6. bake11 min
   350°F, upper-middle rack, parchment
   scoop 40 g mounds two inches apart and bake until the edges are set and browned but the centers still look underdone and puffed — they finish cooking on the hot sheet, and a cookie baked until the center looks done is already dry by the time it cools
7. rest10 min
   on the sheet, then a rack
   the cookies, undisturbed, while the molten sugar sets into structure — moved too early they tear apart