"Each filling makes enough for one batch of cookies. Whichever filling you choose, be sure to prepare it a day ahead...."
INGREDIENTS
•
3/4 cup whole milk
•
5 tablespoons unsalted butter
•
8 ounces bittersweet (not unsweetened) or semisweet chocolate, finely chopped
•
2 large egg yolks
•
6 tablespoons (3/4 stick) unsalted butter, room temperature
•
1/4 cup whipping cream
•
2 cups (packed) powdered sugar
•
6 tablespoons water
•
1 1-pound box powdered sugar
•
2 cups whole blanched almonds
•
6 tablespoons unsweetened cocoa powder
•
3/4 cup egg whites (about 6 large)