Before you begin, fill a deep stock pot or water bath canner with water and add empty mason jars. Bring to a boil, then reduce heat to sterilize the jars as you make the jelly.
Pick through Oregon grape and discard stems, leaves, insects etc. Add to a large bowl, cover with water, and swish around to remove remaining dirt and dust. Transfer to a measuring cup to measure out 4 cups.
Add Oregon grape to a medium saucepan and cover with water. If adding spices, add them now. Bring to a boil over medium heat, then reduce to medium-low and simmer for 10 minutes. Crush berries with a masher to release their juice.
Strain berries through a fine mesh strainer. I got 3 cups of juice. Clean the pot, then add the strained juice and 2 tablespoons of lemon juice.
Bring juice to a boil over medium heat, then whisk in pectin. Bring to a hard boil for 2 minutes, stirring down as necessary. Add sugar and whisk to dissolve. Bring to a hard boil again for an additional two minutes or until the jelly sheets off of the back of a spoon.
Remove jars from canner, then add lids and collars. Ladle hot jelly into jars, then skim off foam. Wipe jar rims before fastening lids and collars; hand-tighen.
Canning Instructions
Add filled jars to the hot water canner and make sure the water level is at least a few inches above the jars. Process the jars in boiling water for 5 minutes, then remove and set on the counter to seal and set. Once they have, label and date the jars and store in a cool location, like a pantry.
Video
Notes
You can optionally add a small portion of a cinnamon stick, a few cardamom pods, or cloves for additional flavor.
Jelly may take up to 24 hours to set completely. Don't move the jars until the jelly has set.
Once opened, store jelly in the refrigerator.
If jars don't seal, either refrigerate them to be consumed first, or share them with your friends!