Place cranberries and tangerine wedges in a food processor; process until coarsely chopped.
Bring vinegar and shallots to a boil in a saucepan. Reduce heat, and simmer, uncovered, 5 minutes or until mixture is reduced to 1/3 cup. Stir in cranberry mixture, sugar, and remaining ingredients. Cook over medium-low heat 5 minutes, stirring frequently.