Microwave Plum Jam - cooking recipe

Ingredients

3 cups purple plums, chopped before measuring (10 to 12 plums)
1 cup water
2 cups granulated sugar
4 teaspoons lemon juice

Preparation

Place sugar, lemon juice and plums in a deep 8 cup microwavable container (I use a pyrex measure).
Microwave, uncovered on High for 2 1/2 minutes, stir. REPEAT twice more.
Microwave, uncovered, on High 15 - 18 minutes, STIRRING every 4 minutes until it will form a gel.
Ladle into hot sterilized jars. Wipe rims, remove any air bubbles, add hot lids and rings.
Process 5 minutes in boiling water bath.