Homemade Grape Jam

Ingredients:
Red Seedless Grapes - 1 Pint or 5 Lbs
Sugar -  5 Cups
Fresh Lemon Juice - 3 tbsp.

Method:

Slip skins from grapes and puree skins with 1 cup sugar in a food processor.

Then transfer to a  4- to 6-quart wide heavy pot.Stir in lemon juice,peeled grapes

and remaining 4 cups sugar and boil over moderate heat,stirring frequently and

skimming foam,until pulp is broken down,about 20 minutes.

Force jam through food mill set over a large bowl.Discard remaining solids.Return

the jam to the pot and cook at a slow boil,skimming foam occasionally and stirring

frequently as mixture thickens to prevent scorching,35 minutes and then test for doneness.

To Test Jam : Remove from heat,then drop a teaspoonful on a chilled plate and chill 1 minute.

Tilt Plate : Jam should remain in a mound and not run.If jam runs,continue cooking at a slow boil,

                   testing every 5 minutes,until done,up to 25 minutes more.