English Wassail Spiced Hot Cider

3/4 cup sugar
2 quarts apple juice
1 pint cranberry juice
1 teaspoon aromatic bitters
1 cup rum
2 sticks cinnamon
1 teaspoon whole allspice
1 small orange, washed well and studded with cloves

Dissolve sugar in juices in crockpot. Add remaining ingredients, allowing orange with cloves to float while simmering. Cook on high for 1 hour. Simmer on low for 4 to 8 hours.