Yid.Dish: Almond Horns
(About 60 cookies) 2 pounds (about 3 1/2 cups) almond paste 3 1/2 cups sugar 1 large egg yolk 1 cup (8 to 9 large) egg whites 24 ounces (about 6 cups) thinly sliced almonds 18 ounces semisweet or bittersweet chocolate, melted (optional) Apricot glaze: 1 cup sugar 3/4 cup (8 ounces) apricot preserves 1/2…