Balsamic BellaVitano® Burgers 4 beef hamburgers 4 onion buns 1 onion, chopped 1 tbsp. balsamic vinegar 1 tbsp. olive oil 1 bag arugula 1 wedge Balsamic BellaVitano®, sliced Cook burgers on grill or stovetop for 8-10 min. Meanwhile, combine onions, balsamic vinegar and olive oil in a pan on medium-high heat for 10-15 min or until caramelized. Add 2 slices of Balsamic BellaVitano® to the hamburger and melt. Place burger on bun, top with caramelized onions and add a handful of arugula.