The sourdough bread was a very light counterpart to the burger but overall felt it crumbles and breaks apart too simply. Not such a great choice to hold the burger together.
I love the layer of balsamic glaze however. It was rich, sweet, sour, sticky that I think was what held the entire burger together.
The lone layer of Parma ham sure helped add a foil of a different scent to the otherwise bland patty. While the Parmesan cheese nicely added a hit of savoury ☺️👍🏻
8/10