noun
biscotti
Italian-style twice-baked crunchy biscuits, often with nuts or dried fruit. Used as a food term.
from Italian
イタリアのカフェで、エスプレッソと一緒にビスコッティを頼んだ。
At an Italian café, I ordered biscotti with my espresso.
クッキー is a general term for cookies, while ビスコッティ specifically refers to the Italian twice-baked biscuit.
ビスケット is a broader term for biscuits/crackers, not specifically the hard, twice-baked Italian style.
Borrowed from Italian 'biscotti', the plural of 'biscotto' (biscuit).