Savoury Japanese Hot Drink of Fermented Soy
Puzzle 13 of Agatha Christie Medium Pack
Question is: Savoury Japanese Hot Drink of Fermented Soy
and the answer is: MISOSOUP
Word Meaning:
MISO SOUP — A traditional Japanese soup consisting of a stock (dashi) into which softened miso paste is mixed.
Definitions from Wiktionary.