Blackberry Jam
Source of Recipe
MOM
5 Cups Berries -- crushed
7 Cups Sugar
1 Box Pectin -- fruit
1/2 Teaspoon Butter
Boil jars on rack in large pot filled with water 10 minutes.
Place flatlids in saucepan with water.
Bring to boil; remove from heat.
Let standin hot water until ready to fill.
Drain well.
Crush berries, sieve half the pulp to remove some seeds if desired.
Combine berries, butter and fruit pectin in 8 quart pot.
Bring mixture tofull rolling boil over high heat, stirring constantly.
Quickly add sugar to fruit mixture.
Bring to full rolling boil and boil 1minute, stirring constantly.
Remove from heat. Skim off any foam.
Fill all jars quickly to 1/8" of tops. Wipe jar rims.
Cover quickly withflat lids. Screw bands tightly.
Invert jars for 5 minutes, then turn upright.
After 1 hour check seals.
Or use water bath method.
Makes 8 cups.
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