Concord Grape Jelly

A few years ago my gate to my fence going from the driveway to the backyard broke. Replacing the whole fence was out fiscally and doing just the gate was going to look odd and not match I decided to put in an arbor and planted Concord grapes and Niagara grapes. Well the Concord grapes are ripe and purple.
I had 1.8 lbs of grapes.
Ingredients
1.8lbs concord grapes
1.8 cups sugar
juice of 1/2 lemon

Prep
Cover Jars with 2 inches of water and boil 10 minutes to sterilize.
Put a plate or two in freezer to test jam later


Recipe
1. Remove the skins for the grapes .
2. combine the skins and 1 cup sugar together in a blender or food processor till skins pureed
3. Over medium heat combine grape insides, remaining 0.8 cup sugar, juice of 1/2 lemon, and skin sugar mix. Simmer until grapes are broken down about 15 minutes
4.Strain through a fine mesh sieve or food mill
5. Return jam to pan to simmer 15 minutes
6.Start testing by putting a dollop on the cold plate and then see if it runs.When not running jam is done may take up to anther 25 minutes of simmering
7. Pour Jam into jars and place lids on  finger tip tight
8. Place under water and boil 10 minutes remove from water and allow to cool