Bernardin Home Canning: Because You Can: Oriental Plum Sauce

Ingredients

• 10 cups (2500 ml) prepared plums, about 4 lb (1.8 kg)
• 2 cups (500 ml) firmly packed brown sugar
• 1 cup (250 ml) granulated sugar
• 1 cup (250 ml) cider vinegar
• 3/4 cup (175 ml) finely chopped onion
• 2 tbsp (25 ml) finely chopped green chili peppers
• 2 tbsp (25 ml) mustard seed
• 1 tbsp (15 ml) salt
• 1-2 cloves garlic, minced
• 1-2 pieces (each ¼ x 1 inch / 0.5 x 2.5 cm) gingerroot, minced
• Pit and finely chop plums. Measure 10 cups (2500 ml); set aside.