Concord Grape Jelly

You mix our Concord grape juice ½ concentrate to ½ water, so 2 cups juice to 2 cups water to get the 4 cups of prepared juice.

• 7 cups sugar
• 4 cups prepared juice
• 1 pouch of certo or some kind of pectin

Measure exact amount of juice in 8 quart saucepot stir sugar into juice add ½ tsp butter if foaming. Bring mixture to full boil stir in pectin quickly. Return to full rolling boil and boil exactly 1 minute stirring constantly. remove from heat. Skim off any foam with metal spoon. Ladle into jars and seal. Process in water bath 10 minutes.