Pear and Cranberry Granita

Combine pears and honey in processor; puree until smooth. Pour reserved pear juices into 2-cup measuring cup. Add enough cranberry juice to pear juices to measure 2 cups. Add juice mixture to processor and process until well blended. Transfer to 13x9x2-inch glass baking dish. Freeze until frozen, at least 5 hours or overnight. Using fork, scrape surface of granita to form crystals. Divide granita among 6 dessert glasses. Garnish with cranberries and mint sprigs, if desired.