malt syrup drink; sweet summer beverage
A traditional Japanese summer drink made by dissolving thick malt syrup (水飴) in hot water, then chilling and often sprinkling with cinnamon. Related to 冷やし飴.
In summer, my grandmother would make ameyu for us.
Sprinkling cinnamon on ameyu releases a refreshing aroma.
Compound of 飴 (ame, 'malt syrup') and 湯 (yu, 'hot water'). The exact historical origin is uncertain, but the drink has been a traditional summer refreshment in Japan.