Red onion jam recipe

3 c Peeled, thinly sliced red onions
1 1/2 c Apple juice
3/4 c Red wine vinegar
1 ts Dried sage
1/2 ts Pepper
5 c Sugar
1/2 c Packed light brown sugar
1/2 ts Margarine
1 Pouch liquid pectin
Mix all ingredients except pectin. Place over high heat; bring to a full rolling boil and stir constantly. Skim off foam with metal spoon, remove from heat. Ladle into sterilized jars, then water bath process for 5 min.