Tamagozake

Tamagozake (卵酒 or 玉子酒) is a drink consisting of heated sake, sugar and a raw egg. It translates as "egg sake", being made of the kanji 卵 tamago (egg) and 酒 sake. Outside of Japan, tamagozake is sometimes referred to as sake-nog, due to its resemblance to eggnog.

Use as a cold remedy
Tamagozake is a traditional home remedy for the common cold in Japan, however there is no medical proof of its efficacy.

Even though it is an alcoholic drink, it is sometimes given as a cold remedy to children as well as adults, much as hot toddies are used in Western countries.

Recipe
Like most home remedies, there are several variant recipes for tamagozake, but the basic properties are the same.