01 - 
                Combine olive oil, balsamic vinegar, mustard, honey, garlic, salt, and pepper in a bowl. Stir until blended.
              
              
              
                02 - 
                Cover the steak with the marinade, place it in a bowl, and pop it in the fridge for anywhere from 4 hours to overnight.
              
              
              
                03 - 
                Heat your grill to medium-high and cook the steak for 4-5 minutes per side, or until it’s how you like it.
              
              
              
                04 - 
                Put leftover marinade in a saucepan and simmer until it thickens and gets syrupy.
              
              
              
                05 - 
                To blister tomatoes, cook on the grill for 1-2 minutes on each side. Bocconcini only needs about 20-30 seconds to warm up—be quick!
              
              
              
                06 - 
                Rest the steak for a bit, slice it against the grain, and layer with sauce, warm tomatoes, bocconcini, and your chosen herbs.