If your measuring cups are lost in the drawer abyss, use a tablespoon. 16 tablespoons equal one cup, so 2/3 cup is 10 tablespoons plus 2 teaspoons. Half of that is 5 tablespoons plus 1 teaspoon. Write that on a sticky note. Stick it on your fridge. You’re welcome.
Remember, cooking is about joy, not perfection. So if your half of 2/3 cup is a smidgen over or under, your meal will still taste like you. And that’s the best ingredient of all.
So next time a recipe throws a fraction at you, smile. You’ve got this. Grab your 1/3 cup measure, pour with confidence, and carry on. Your future self—and your taste buds—will thank you.