Fettran sauce
From Memory Alpha, the free Star Trek reference.
Fettran sauce is a condiment, usually not combined with sweet foods such as ice cream.
While trapped in an Akritirian prison in 2373, Harry Kim fantasized about a meal of shrimp with fettran sauce, flambé noodles, and fudge ripple pudding. (VOY: "The Chute")
In 2376, Tuvok prepared a wikki fruit sundae with warm fettran sauce for Tom Paris and Harry Kim. The two were skeptical about the combination at first, but found it delicious upon tasting. (VOY: "Riddles")
