To make the patties, place all ingredients in a bowl, and mix until thoroughly combined (using your hands works best).
Shape into patties and allow to rest in fridge.
Butter your rolls, and butter side down, fry them in a non-stick frying pan until brown and crispy on the bottom.
For your onion ring batter, mix everything in a bowl with a whisk, add your onion rings and gently stir until evenly coated.
Fry your patties until done, turning so each side browns evenly - will take about 3 minutes a side, flipping them so each side gets 3 turns.
While you are frying these, allow your oil to heat for the onion rings - when hot, fry your onion rings in batches (don't overcrowd otherwise they will stick together).
Remove to paper towel when golden.To assemble:
Place a patty on the roll, top with shaved parmasan, bacon and coriander.
Serve with onion rings and chips on the side.
Tomato sauce optional.
Reprinted with permission of The Gorgeous Gourmet
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