To prepare the cups of amaretti, chestnuts, and mascarpone, start by selecting and scoring the chestnuts, then boil them in a pressure cooker for about 15 minutes or in a regular pot for 30 minutes.

Nat King Cole crooning that first line from “The Christmas Song” sends holiday vibes buzzing wherever you are. But have you smelled, tasted or even seen a freshly roasted chestnut? Until a few years ...