Fetran sauce
Fetran sauce was 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 fetran sauce, flambé noodles, and fudge ripple pudding. ()

In 2376, Tuvok prepared a triple chocolate wikki fruit sundae with warm fetran sauce for Tom Paris and Harry Kim. The two were skeptical about the combination at first, but found it delicious upon tasting it. ()

See also 
Fettran risotto

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Sauces