Method
For that fish stock, invest the components except the fish bones right into a large pan, provide the boil, then turn lower heat and simmer lightly for 25 minutes.
Add some fish bones (or fish fillet) and produce look out onto a simmer, skimming off any scum because it increases towards the surface. Simmer for any further twenty minutes. Strain via a sieve right into a clean pan and simmer longer, if required, until reduced to around 1.2 litres/2 pints. Otherwise using immediately, awesome and refrigerate or freeze for later.
For that tomato sauce, heat the essential olive oil and garlic clove inside a saucepan. When the garlic clove begins to sizzle, add some tomato plants and simmer for 15-twenty minutes, breaking them as they prepare. Prepare before the sauce has reduced and thickened, then season with pepper and salt. The sauce is able to use. Otherwise using immediately, leave to awesome, then refrigerate for approximately per week or freeze for later.
Season the John Dory fillets with a few pepper and salt and gently dust with flour. Heat the essential olive oil inside a fry pan, add some fillets skin-side lower and fry for just two-3 minutes until gently browned. Season having a squeeze of fresh lemon juice, turn the fish over and prepare for any further minute. Remove in the pan and warm.
Add some Worcestershire sauce, gherkins, whole and chopped capers, tomato plants, tomato sauce and fish stock towards the pan, provide the boil then reduce just a little to produce the sauce. Add some fish carefully to the pan for any minute to warm through within the sauce.
Serve immediately, drizzled after some more essential olive oil and sprinkled with fresh parsley.