Borscht Crostini
This beautiful holiday hors d’oeuvre delivers all the best of Ashkenazi cuisine — the tangy and bright and creamy and crunchy — in one bite. Serves 6 3 medium beets, peeled, halved and cut into ½-inch chunks 4 medium carrots, peeled, halved lengthwise and cut into 2-inch lengths 3 tablespoons red wine vinegar 2 tablespoons…