In a medium bowl mix the coffee and amaretto. Add the crushed ladyfingers and let soak for 2 minutes. Meanwhile, whip the heavy cream and brown sugar until soft peaks form.
Take 4 dessert glasses and place soaked ladyfingers into the bottom of each glass with a spoon. Top with whipped cream followed by another spoon of soaked ladyfingers. Repeat this process ending with whipped cream layer on top. Grate chocolate on top for garnish. Serve.