Salmoriglio is a simple Calabrese and Sicilian condiment of olive oil, salt, garlic, oregano, parsley and lemon, often used as an easy delicious sauce for seafood.
Pound Extra Virgin Olive Oil, garlic, capers, lemon zest and juice, salt flakes, pepper, oregano, parsley and chilli in a mortar and pestle until a paste forms.
Fillet the flounder (or leave whole) and pan sear in the olive oil.
Serve with the salmoriglio smeared on top of the fish and finish with watercress.