Red Onion Jelly - cooking recipe

Ingredients

3 cups red onions
1 1/2 cups apple juice
1/2 cup red wine vinegar
1 1/2 teaspoons rubbed sage
1/2 teaspoon pepper
4 cups sugar
3/4 cup firmly packed light brown sugar
1 (1 3/4 ounce) package powdered fruit pectin
1/2 teaspoon butter

Preparation

Peel, quarter and thinly slice red onions.
Measure 3 cups into a 6-or-8-quart sauce pot.
Stir in apple juice, vinegar, sage and pepper.
Measure sugars in a separate bowl.
Stir fruit pectin into onion mixture in sauce pot.
Add butter.
Over high heat, bring mixture to a full rolling boil, stirring constantly.
Quickly stir in sugars.
Return to a full rolling boil and boil exactly 5 minutes, stirring constantly.
Remove from heat.
Skim off any foam with metal spoon.
Ladle quickly into hot, sterilized half pint jars, filling to within 1/8 inch of tops.
Wipe jar rims and threads.
Cover with lids.
Screw bands tightly.
Process in a boiling water bath for 5 Minutes.