If you like cooked onions on your burger, try cooking it inside of the burger, not in pieces but as a whole slice. The onion will cook inside and the juices will keep your burger juicer even if you like a little well done. We make two very thin burger patties, salt and pepper them, place a slice of onion in the middle of one of the patties, cover it with the other patty, and then seal the edges of the two patties together around the slice of onion. Thick and delicious! Give it a try!