Here is the secret that makes you feel like a pro: 1 cup of butter weighs 8 ounces (227 grams). So 1 1/2 cups? That’s 12 ounces, or 340 grams. Weighing it on a kitchen scale is the most accurate way—and it’s oddly satisfying, like a small act of rebellion against measuring cups.
I once tried to eyeball 1 1/2 cups by hacking off chunks from a big block. Let’s just say my cookies spread out like they were trying to escape the pan. Don’t be that person.
