Microwave Plum-Orange Jam

• 4 12 cups blue plums
• 1 finely grated orange, rind of
• 6 cups sugar
• 14 cup lemon juice
• 12 bottle liquid fruit pectin

1. Pit plums but do not peel.
2. Coarsely chop.
3. Place in a 16-cup microwave-safe dish; stir in orange peel, sugar and lemon juice.
4. Stir well.
5. Microwave, uncovered, on High for about 15 minutes, until mixture comes to a full roiling boil and boils for 1 minute.
6. Stir well 3 times during cooking.
7. Immediately stir in pectin.
8. Skim off foam with a metal spoon.
9. Continue stirring often and skimming off foam for 10 minutes.
10. Pour into sterilized jars and seal.

blue plums, sugar, lemon juice, liquid fruit

Taken from www.food.com/recipe/microwave-plum-orange-jam-12758 (may not work)