soy jamn. a thick sauce or paste made from fermented soybeans, similar in flavour to soy sauce and used as a condiment or flavouring esp. in East and South-East Asian cuisine.
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1945 B. Y. ChaoHow to cook & eat in Chinesei. iii. 27 Similar to soy sauce is a soy jam, which is much thicker in consistency.
2000 J. GoldCounter Intelligence 198 Korean-style free appetizers—slivers of raw onion served with thick salty soy jam.