Cut the rocket or turnip tops into pieces roughly the same size as the calves’ liver.
Heat 25ml of olive oil in a pan and fry the shallots until crispy and golden brown. Set them aside.
Put another pan on a medium-high heat. When it is very hot – almost starting to smoke – add the remaining 25ml of olive oil, salt and pepper (be careful!). Add the garlic, then the calves’ liver, and shake the pan. Now add the chilli, then the rocket or turnip tops.
Season again and spoon on to the toast, finishing with an extra drizzle of olive oil and topping with the crispy shallots.