Why did you not ask me? I could have shown you a cup and we could have weighed it out together....

It's about 8oz (250g), on average, but it doesn't really matter as long as the same cup is used. If the recipe calls for 2 cups of flour, then don't be using a pint mug and a dolls teacup.....

LTS whose cookie appears to have crumbled momentarily, it's what happens when you let the child play with the computer.....