Recipe: Certo Grape Jelly (using grape juice)

CERTO Grape Jelly
Makes: about 7 (1-cup) jars
or 112 servings, 1 Tbsp. each

4 cups prepared juice (buy about 3 lb. fully ripe Concord or other loose-skinned grapes)*
1/2 cup water
7 cups sugar, measured into separate bowl
1/2 tsp. butter or margarine (optional)
1 pouch CERTO Fruit Pectin

BRING boiling-water canner, half full with water, to simmer. Wash jars and screw bands in hot soapy water; rinse with warm water. Pour boiling water over flat lids in saucepan off the heat. Let stand in hot water until ready to use. Drain well before filling.

STEM and crush grapes thoroughly, one layer at a time. Place in saucepan. Add water. Bring to boil. Reduce heat to low; cover and simmer 10 minutes, stirring occasionally. Place 3 layers of damp cheesecloth or jelly bag in large bowl. Pour prepared fruit into cheesecloth. Tie cheesecloth closed; hang and let drip into bowl until dripping stops. Press gently. Measure exactly 4 cups juice into 6- or 8-quart saucepot.

STIR sugar into juice in saucepot. Add butter to reduce foaming, if desired. Bring mixture to full rolling boil (a boil that doesn't stop bubbling when stirred) on high heat, stirring constantly. Stir in pectin. Return to full rolling boil and boil exactly 1 minute, stirring constantly. Remove from heat. Skim off any foam with metal spoon.

LADLE immediately into prepared jars, filling to within 1/8 inch of tops. Wipe jar rims and threads. Cover with 2-piece lids. Screw bands tightly. Place jars on elevated rack in canner. Lower rack into canner. (Water must cover jars by 1 to 2 inches. Add boiling water, if necessary.) Cover; bring water to gentle boil. Process 5 minutes. Remove jars and place upright on towel to cool completely. After jars cool, check seals by pressing middle of lid with finger. (If lid springs back, lid is not sealed and refrigeration is necessary.)

*If using wild grapes, Malaga or other tight-skinned grapes, decrease prepared juice to 3 1/2 cups and add 1/4 cup fresh lemon juice. Concord grapes give best color and flavor.