Salmon in Mojo Sauce

4 fresh salmon fillets, weighing about 750g / 1 lb 10 oz in total
salt and pepper
3 tbsp olive oil
1 fresh flat-leaf parsley sprig, to garnish

To the mojo sauce
2 garlic cloves, peeled
2 tsp paprika
1 tsp ground cumin
5 tbsp extra virgin olive oil
2 tbsp white wine vinegar
salt

To prepare the mojo sauce, put the garlic, paprika and cumin in the bowl of a food processor and, using a pulsing action, blend for 1 minute to mix well together. With the motor still running, add 1 tablespoon of the olive oil, drop by drop, through the feeder tube. When it has been added, scrape down the sides of the bowl with a spatula, then very slowly continue to pour in the oil in a thin, steady stream, until all the oil has been added and the sauce has slightly thickened. Add the vinegar and blend for a further 1 minute. Season the sauce with salt.

To prepare the salmon, remove the skin, cut each fillet in half widthways, then cut lengthways into 2cm / 3/4in thick slices, discarding any bones. Season the pieces of fish with salt and pepper.

Heat the olive oil in a large, heavy-based frying pan. When hot, add the pieces of fish and cook for about 10 minutes, depending on its thickness, turning occasionally until cooked and browned on both sides.

Transfer the salmon to a warmed serving dish, drizzle over some of the mojo sauce and serve hot, garnished with parsley, and accompanied by the remaining sauce.