Onion jam can be used on anything and everything. This recipe adds so much depth and flavor to any dish. Spread it on a sandwich, have some on the side of grilled chicken or beef, or toss it with roasted veggies. The sweet, tangy deep flavor of the jam adds so much depth to anything you put it on.
Start by washing the onions and drying them. Place them into a slow cooker to cook nice and slow for several hours. This slow-cooking process is what develops all those beautiful earthy flavors. Cooking onions in the skin allows them to steam and roast in their own juices, locking in all of that goodness. The sugars in the onion begin to caramelize with the addition of brown sugar and apple cider vinegar. You'll find yourself putting this delicious jam on everything.