The phrase "sell like hot cakes" is a simile for how quick something is selling. That said, the meaning of "hot cake" is apparently a synonym of pancakes, or before pancakes, corn griddle cake and other varieties. Dictionary.com lists the date of origin dating back to 1839, where it first appeared.
That said, I'm wonder what's so "hot" about hot cakes? Was the time period in 1839 a period in which "hot cakes" were all the rage? Is there something about hot cakes that made them so popular that the phrase was coined?
I'm looking for the etymology of such a phrase.
Best Answer
According to the following sources the idea of "hot" is that the cakes were (and probably somewhere still are) sold quickly as they were cooked, that is while they were hot (hot and tasty). That kind of cakes would probably remain unsold once they became cold.
Hot cake:
(An Americanism dating back to 1675-85)
Sell like hot cakes:
(The American Heritage® Idioms Dictionary)
The following source offers two alternative explanations is to the origin of sell like hot cakes:
(mentalfloss.com)