Sweet and Sour Sauce

Name: Sweet and Sour Sauce
Yield: Approximately 2 pints
Ingredients: 9 or 10 oz. jar plum jam; 9 or 10 oz jar. apricot jam; 1 teaspoon ginger; ½ teaspoon cloves; 9 or 10 oz jar orange marmalade; ½ cup cider vinegar (for a milder sauce, use ⅓ cup)