noun which may take the genitive case particle 'no', noun
hard-boiled
Describes eggs boiled until the yolk is firm. Often used in cooking contexts.
朝食に固ゆで卵を食べた。
I ate a hard-boiled egg for breakfast.
固ゆでが好きですか、それとも半熟が好きですか。
Do you like hard-boiled eggs or soft-boiled eggs?
半熟 means soft-boiled or half-cooked, the opposite of 固ゆで.
Compound of 固 (かた, hard) and ゆで (boiling), from the verb 茹でる (ゆでる, to boil).