Instructions

  1. Remove berries from bags and place in a large bowl.
  2. Thaw berries in the refrigerator until soft enough to crush, but some ice crystals still remain.
  3. Crush berries with a potato masher.
  4. Measure 4 cups crushed berries; set aside.
  5. Combine freezer jam pectin and sugar in a medium bowl, stirring to evenly blend.
  6. Add crushed berries and lemon zest.
  7. Stir for 3 minutes.
  8. Serve immediately, if desired.
  9. For longer storage, ladle jam into clean freezer jars, leaving 1/2-inch headspace; apply lids. Let stand until thickened, about 30 minutes.
  10. Refrigerate up to 3 weeks or freeze up to 1 year.
  11. Yield: five 8-ounce jars.