noun
rice gruel with adzuki beans
A traditional Japanese dish made by cooking rice and adzuki beans together into a soft porridge, often eaten on special occasions like the 15th of January (小正月).
小正月には小豆粥を食べる習慣があります。
There is a custom of eating rice gruel with adzuki beans on the Little New Year.
Compound of 小豆 (azuki, 'adzuki bean') and 粥 (kayu, 'rice gruel'). The reading あずきがゆ is a straightforward combination of the two words.