Iced Coffee Granita

Ingredients
- 2 cups freshly brewed strong coffee, cooled
- 1/2 cup granulated sugar
- 1/4 teaspoon ground cinnamon
- 2 tablespoons heavy cream
- 2 tablespoons light corn syrup
- 1/4 teaspoon vanilla extract
Directions
Combine iced coffee, 2 tablespoons of the liqueur, and lemon zest in an 8-inch square baking dish. Cover with plastic wrap and place in freezer on a level surface.