Sicilian Granita

Stir hot espresso and sugar in a medium bowl until the sugar dissolves. Let the mixture cool to room temperature, then pour into a 9-by-13-inch baking pan. Place on a level surface in your freezer and freeze for 2 hours, stirring and scraping with a fork every 20 minutes to break up the ice crystals. Cover and freeze for at least 1 hour more. Beat cream in a medium bowl with an electric mixer on high speed until medium peaks form, 30 seconds to 1 minute. Scrape the frozen granita into ice crystals using a sturdy fork. To serve, layer the granita with whipped cream in goblets or simply top with a dollop of whipped cream.