Sorry for the long title, but I had to fit all the deliciousness into it. And that didn’t even include the fresh rosemary and gooey mozzarella cheese. Remember these Rosemary Balsamic Caramelized Onions from a couple weeks ago? Well they are back and even tastier in this dish.
There are a thousand methods for caramelizing onions and each chef will tell you that their way is the best. High heat, stirring a lot? Low and slow? Water? No water? Salt? No salt? No matter the method, caramelized onions make a fantastic addition to so many dishes!