Let’s wrap this up with some nonsense that works. A standard yogurt container (the single-serve kind) is usually 6 ounces, which is 3/4 cup. Rinse it out, use it as a scoop. Or use a mason jar—the standard 8-ounce jar is 1 cup, so fill it to the bottom of the neck. That’s your mark.
And if all else fails, use your hand. A cupped palm holds about 1/2 cup of liquid. So two palms full is a full cup. One palm plus two fingers dipped? Okay, I’m making that up. But honestly, just use the 12-tablespoon method and move on with your life. You’ve got dinner to make.