The term 'deep-fried treat' refers to two popular fried snacks: a FRITTER and an onion ring. A FRITTER is a deep-fried snack made from a mixture of flour, eggs, and milk, which is then shaped into a ball or patty and deep-fried in oil. An onion ring is a deep-fried snack made from a sliced onion that is dipped in batter and then deep-fried in oil. Both of these snacks are usually served with a dipping sauce such as ketchup or mayonnaise.