Hotcakes

Pancakes; also used in the phrase 'selling like hotcakes,' meaning something is selling very quickly and in large quantities.

Compound word from 'hot' and 'cakes,' appearing in American English by the 18th century. The phrase 'selling like hotcakes' became popular in the 19th century because hotcakes were inexpensive, quick to make, and easy to sell at markets and street fairs.