Red onion 1 small , tough outer layers peeled and discarded
400 g ground beef
1 tsp. celery salt
Flat-leaf parsley a handful, finely chopped
4 slices of prosciutto
Oil for frying
4 slices of provolone (or fontina)
Lettuce leaves to serve
BURGER SAUCE
4 tbsp. mayonnaise
3 tsp. sweet mustard
6 cornichons , chopped
4 pickled onions , chopped
Instructions
Grate the onion with a box grater.
To make the sauce, mix the mayo, mustard, cornichons and pickled onions and season.
To make the burgers, put the mince, onion, celery salt and parsley in a bowl. Season with pepper and mix well, then divide into four balls. Form each ball into a thin patty – they will shrink as they cook so make the burgers larger than your buns.
Pan fry the prosciutto for 2-3 minutes until crisp and remove.
Heat grill to hot or a large, heavy frying pan. Oil and season the burgers and grill until patties are cooked through.
Place a slice of provolone on top of each burger patty and grill for 2 minutes until the cheese is melted.
Add some lettuce to each D’Italiano® Original Crustini Buns. Sit a burger patty on top, add the crispy prosciutto, spoon over the sauce and put on the bun top.