yields about 10-12 medium cookies or 16-18 small ones.
I generally like to test one cookie in the oven before baking the rest of the batch — my oven is finicky and I often have problems with my cookies not spreading, so my instructions may yield a flatter cookie for you. If that’s the case, refrigerate the dough for a good amount of time (at least 30 minutes and up to 3-4 hours or even overnight) before baking and you should get less spread.