Slow cooker caramelized onions

Nothing takes a burger, pizza or barbecue to the next level faster than perfectly-cooked caramelized onions. In fact, we’d argue that just about anything you can think of is better with some golden-brown onions on top. Just one problem— they’re surprisingly tricky to make. Luckily for all of us, the best way to make them is also one of the easiest: in the slow cooker!