Step 1Pit the cherries and place in a large bowl. Toss in the sugar, orange and cherry liqueurs. Toss and set aside for 30 minutes to give the flavors time to marry.
Step 2Place the cherry mixture, along with the water and almond extract, into a blender and puree until the mixture is liquefied to form a granita base. This makes about 3 cups.
Step 3Strain the granita base and place in a large baking dish. Freeze, stirring every half-hour or so until the granita is frozen. To serve, shave the granita, raking the tines of a fork across the surface to break up the crystals. Serve immediately.