Hot fudge sundae
A hot fudge sundae was an Earth dessert.
This food was one of the items sold at Pops Candy Store in 1893 San Francisco. (TNG: "Time's Arrow, Part II")
In Star Trek: Deep Space Nine Companion, Nana Visitor recalled the rock prop she was encased in for DS9: "Heart of Stone", saying it "looked like a big old hot fudge sundae, and my head was the cherry on top."