Method:
My recipe for making mulberry jam is: boil fruit for ½ hour (no water needed) stirring occasionally. Then take off stove. Measure one cup of sugar to one cup of pulp, add 2 teaspoons of vinegar to each 1 cup of fruit plus sugar mixture.
Put on stove and boil and stir for ½ hour. Put into hot, sterilised jars (the vinegar helps it to set and stops mould).
DATE: March 1995
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