It’s unlike any jam you’ve had before. Rich and savory, with a hint of sweetness and verdant rosemary, this jam will make an excellent side at your next dinner party.

Spread it on your hamburger, swirl in in your mashed potatoes or make it the standout sauce on your next pizza. It’s a versatile spread that’s part condiment, part sauce and entirely delicious.⁠
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This balsamic onion jam recipe delivers a sweet, rich, caramelized goodness with a savory bite. This is definitely the type of jam that elevates an ordinary grilled cheese sandwich to something a bit divine and altogether irresistible!

Step 1

Put olive oil and onions in a large saucepan. Cook over medium-high heat stirring only occasionally; cook until golden, about 10-15 minutes.

Step 2

Add sugar and balsamic vinegar and cook until thickened and somewhat syrup-y. Add pepper and herbs.

Step 3

Ladle into sterilized half pint jars, leaving about 1⁄2” headspace.

Step 4

Refrigerate after making and it can last in the fridge for 1-2 weeks.