Best Blackberry Freezer Jam. Its important that you watch the pot continuously and stir frequently to keep the foam stirred down. Blackberry jam has a tendency to foam quite a bit while cooking.
Blackberry jam has a tendency to foam quite a bit while cooking. You can add a 12 tablespoon of butter to any jam. Bring to a full boil and boil 1 minute stirring constantly.
Blackberry jam has a tendency to foam quite a bit while cooking.
At once stir into fruit and continue stirring 3 minutes. Its important that you watch the pot continuously and stir frequently to keep the foam stirred down. Immediately put into prepared containers freezer jars or cartons that have been scalded leaving 12 inch space at top. Bring to a full boil and boil 1 minute stirring constantly.