- 2 large or 4 small mackerel, gutted
- salt and freshly ground black pepper
- 4 very ripe tomatoes, seeds removed, chopped
- 50g/2oz capers in salt, rinsed and drained
- 1 lemon, juice only
- 3 tbsp olive oil
- 500g/1lb 2oz waxy potatoes, peeled and cut into 3cm/1¼in cubes
- 1 red pepper, thinly sliced
- 1 yellow pepper, thinly sliced
- 2 garlic cloves, finely sliced
- 25ml/1fl oz white wine
- Preheat the grill to high. With a sharp knife, slash the sides of the mackerel and season with salt and freshly ground black pepper.
- Place on a grill tray and grill for 3-4 minutes on each side, or until cooked through.
- Transfer the mackerel into a deep serving dish.
- Cover the mackerel with the chopped tomatoes and capers.
- Pour the mackerel juices from the grill tray over, along with the lemon juice. Set aside in a warm place.
- Heat a frying pan until just warm. Add the oil, potatoes, peppers and garlic and stir to combine.
- Add the white wine and simmer gently, stirring from time to time to prevent sticking, until the potatoes are cooked through and the peppers are soft.
- Season with salt and freshly ground black pepper, to taste.
- Serve the mackerel with the potatoes on the side.