When I get a craving for caramalized onions, I make the time to cook a batch on the stove top. I know it's time consuming, but I'm always happy with the sweetness the slow cooking brings to these veggies. It's almost like making jam or jelly. And they're the perfect condiment (or star) for sandwiches, salads, pizza, soups, and savory bread puddings. This is one of my go-to sandwich recipes when I have caramalized onions and fontina cheese in the house.