A classic Italian dessert, panna cotta (Italian for cooked cream) is a gloriously smooth custard made without eggs. It is bound with gelatin and served chilled. The recipe featured here is from Brian Alberg, chef at the Red Lion Inn in Stockbridge, Massachusetts. He cleverly uses buttermilk to add a bright tang to this confection, and to keep it from being cloying. Garnished with fresh blueberries and mint, this dessert is the answer when you want something that’s quick, make-ahead, and delicious.