01 -
Melt your butter in a medium-sized pot over medium heat. Let it bubble up while occasionally stirring or swirling the pan. Keep an eye as it goes from light yellow to a nice deep golden-brown color, with tiny browned specks showing up. You'll notice a nutty fragrance at this point—this is the time to pour it out into a heat-safe bowl. Set this in the fridge to firm up for about 1 hour.
02 -
When the butter has solidified, beat it with the white and brown sugars using a stand mixer for 2 minutes or so until fluffy. Add the egg and vanilla in and mix again steadily until smooth. Carefully work in the flour, salt, and baking soda, but gently—stop once it's evenly combined. Finish by folding the chocolate chips and toasted pecan pieces into the mix.
03 -
Scoop dough in big mounds (around ¼ cup per cookie) onto a parchment-lined baking sheet. If you're baking right away: put them in the oven at 375°F for 9–10 minutes. Want a richer flavor? Let them sit in the freezer for 20 minutes first, then bake at 375°F for 11–12 minutes. The best result comes from chilling the dough at least 2 hours or even overnight—then bake at 350°F for 15 minutes, turning the tray halfway. Space cookies well apart, as they'll spread.
04 -
Leave the cookies on the baking sheet for about 10 minutes to cool before moving them to a rack. They taste amazing with a tall glass of cold milk!