what quantity is a "cup"?!

[labebete]

I'm looking for cookie recipes and lots seem to say half a cup or a cup of whatever rather than a nice sensible quantity. how much do they mean? I only have mugs!

you can buy measuring cups at anywhere they sell kitchen equipment. They are a specific measure.

It is 230ml

like these

thank you!

As long as you use the same mug it usually works if you measure all the ingredients in cups, especially for things like biscuits.

An American one. Boycott it and insist on fluid ounces. Or Napoleonic millilitres