large broad bean
Refers to the raw or general broad bean, especially large varieties. Often associated with the boiled and sweetened preparation (sense 2).
Otafuku-mame is a type of broad bean, referring especially to large varieties.
boiled and sweetened broad bean
A traditional sweet snack: large broad beans boiled and sweetened, often served as a confectionery.
I served otafuku-mame (sweetened broad beans) with tea.