Loganberry Jam

Directions

1. 1
   Boil jars on rack in large pot filled with water 10 minutes. Place flat lids in saucepan with water. Bring to boil; remove from heat. Let stand in hot water until ready to fill. Drain well.
2. 2
   Crush berries, sieve half the pulp to remove some seeds if desired.
3. 3
   Combine berries, butter and fruit pectin in 8 quart pot. Bring mixture to full rolling boil over high heat, stirring constantly.
4. 4
   Quickly add sugar to fruit mixture. Bring to full rolling boil and boil 1 minute, stirring constantly.
5. 5
   Remove from heat. Skim off any foam.