noun
steamed bun with anko filling
A soft steamed bun filled with sweet red bean paste (anko), often with a touch of sesame oil in the dough. A popular snack in Japan, commonly found in convenience stores.
コンビニで温かいあんまんを買った。
I bought a hot steamed anko bun at the convenience store.
冬になると、あんまんが食べたくなる。
When winter comes, I crave steamed anko buns.
From 餡 (an, 'red bean paste') + 饅 (man, 'steamed bun'), a type of 饅頭 (manjū).