Place all of the de-stemmed berries in a stock pot and heat
over medium heat.
Stir the berries and mash with a potato masher frequently to
release all of the juices.
Once the juice has come to a boil reduce the heat to medium-
low and simmer, covered, for 10 minutes.
Remove from heat and strain the juice into a separate bowl
or pot. My large Pyrex measuring bowl worked really well for this step because
you are going to need an exact measurement of juice for the jelly to set.
Measure 7 cups of sugar into a separate bowl and set aside
for now.
Return the elderberry juice to the pot on high heat and add
the package of Sure Jell.
Stir the pot continuously until the juice mixture reaches a
rolling boil (a boil that continues while stirring contents of pot).
Add the sugar and continue stirring constantly. Return to a
rolling boil. Boil for exactly 1 minute and remove from heat. Skim off any
foam using a metal spoon.
Immediately fill prepared jars, leaving ΒΌ inch of headspace
at the top of the jar. Wipe top of jars and tightly screw lids on.
Process jam jars in a hot water bath for 5 minutes.
Allow jars to cool and jelly to set for 24 hours.