Strawberry Balsamic Sweet Onion Jam

1/4 cup balsamic vinegar

4 cups fresh strawberries, stems removed, crushed

1 1/2 cups diced sweet onion (I used Vidalia Onions)

1 tsp butter to reduce foaming

1 box Sure Jell or powdered fruit pectin

7 cups granulated sugar

 

In a large pot, over high heat, add the strawberries, onions, butter, balsamic vinegar, and pectin. Bring to a full rolling boil (one that doesn’t stop while stirring). Add the sugar and return to a full rolling boil. Boil hard for one (1) minute. Remove the pot from the heat. Ladle the jam into your hot jars, you want them filled to within ¼” of the top rim. Be sure to wipe the top rim of the jars with a damp paper towel to get off any drips or spills. Cover each jar with a lid and a ring. Process jars 10 minutes in a boiling water bath or steam canner. Remove jars and allow them to cool 24 hours undisturbed on your kitchen counter-top. Jars are sealed when the button on the top of the lid is fully depressed and won’t move up and down. Yield: 10 – half-pint (8 oz) jars