Pick 1.5lbs of hawthorn berries (haws). This will make 1 jar of hawthorn jelly, so obviously if you need more jars, pick more fruit. Make sure that you remove the stalks. A good way is to simply roll a clump of berries (stalks and all) in between your hands, and you’ll find the haws just roll off. It’s certainly easier than individually pulling off each stalk. Now wash your haws and then drain.