Be sure to use a powdered pectin in this recipe. Don't substitute liquid pectin or a low sugar variety.
1 pound ( 4 Cups) fresh blackberries
3/4 C sugar
2 TBS powdered fruit pectin
1 TBS fresh lemon juice
Mash berries with a potato masher or a fork, in a large bowl.
In a 12" non stick skillet, combine berries,sugar, pectin, lemon juice.
Boil, stirring occasionally until slightly thickened, about 7 minutes.
Transfer jam to a large ,shallow bowl, cover the surface with waxed paper, refrigerator. Chill until softly set, at least 30 minutes. The jam will set further if chilled longer.
Peace in the Kitchen!