Original source

Makes 12-18 cookies

Qty	Thing
110g	butter
100g	brown sugar
90g	granulated sugar
7.5g	kosher salt
2.5g	baking soda
10g	vanilla extract
50g (1 whole)	egg
200g	pastry flour
150g	chopped chocolate or chocolate chips

1. Cream butter, sugars, salt, and baking soda
   1. In a stand mixer with paddle attachment, combine ingredients
   2. Increase speed to medium-high and mix for two more minutes, pause to scrape down sides. Dough should be pale tan and fluffy
2. Add vanilla and eggs with mixer going
   1. Increase speed to high and mix until fully incorporated
3. Add flour, mix until incorporated
4. Add chocolate, mix until incorporated
5. Portion into balls (~65g each) and chill
6. Preheat oven to 350 F / 177 C
7. Bake for 13-14 minutes
8. Let rest for at least 10 minutees