Fresh mackerel with roasted rhubarb recipes - Main course
Visit the Waitrose website for more rhubarb recipes and ideas Mackerel and rhubarb is a pretty classic pairing and it's done beautifully simply here. Tart rhubarb cuts through the richness of smoky, oily mackerel for a perfect spring supper.
Fresh mackerel with roasted rhubarb

Believe it or not, this is a classic combination. Tart rhubarb cuts through the richness of smoky, oily mackerel for a perfect spring supper.
Provided by: Nigel Slater
Total time: 60 minutes
Cook time: 30 minutes
Prep time: 30 minutes
Yields: 2 servings
Cuisine: British
Number of ingredients: 8
Provided by: Nigel Slater
Total time: 60 minutes
Cook time: 30 minutes
Prep time: 30 minutes
Yields: 2 servings
Cuisine: British
Number of ingredients: 8
Ingredients:
- 4-5 stalks rhubarb
- good shake of light brown sugar
- 2 fresh mackerel, filleted
- a little plain flour, seasoned with salt and freshly ground black pepper, for dusting
- a couple of good glugs of fruity olive oil
- a few sprigs of rosemary, chopped
- 1 tbsp capers, drained
- splash sherry vinegar
How to cook:
- For the roasted rhubarb, preheat the oven to 200C/400F/Gas 6. Cut the rhubarb into 15cm/6in or so lengths (about the length of a wooden spoon-handle) and place in a roasting tin with half a tea-cup of water and the light brown sugar. Roast until just soft enough to take the point of a knife, about 10-15 minutes. Allow to cool, then drain, reserving the cooking juices.
- Dip the skin side of each mackerel fillet into the seasoned flour to lightly coat. Heat the oil in a large frying pan. Gently place the mackerel fillets in the hot pan, skin-side down, and scatter over the rosemary. Add the roasted rhubarb to the side of the pan to heat through and add the capers for a little vinegary flavour.
- Turn the mackerel after just two or so minutes when you can see that the mackerel is cooked halfway up the fillet. Cook for a further minute or two, then add the sherry vinegar for richness and allow to just come to the boil in the pan before removing the mackerel and the rhubarb. To the pan juices, add a little of the juices from the reserved roasted rhubarb to just lift the crispy bits from the pan where all the flavour is. Serve straightaway, with the sauce over the mackerel with the rhubarb on the side.
Mackerel with Rhubarb Sauce

Not quite so famous as mackerel with gooseberries but just as good – the acidic fruit counteracts the richness of the fish perfectly.
Provided by: Delia Smith
Yields: 2 servings
Cuisine: British
Number of ingredients: 6
Provided by: Delia Smith
Yields: 2 servings
Cuisine: British
Number of ingredients: 6
Ingredients:
- 2 prepared fresh mackerel
- 225g rhubarb
- 1 tablespoon demerara sugar
- ½ teaspoon ground ginger
- 150ml water
- Seasoning
How to cook:
- Make the sauce first by chopping the rhubarb into smallish chunks and putting it into a thick-based saucepan, adding the sugar, ginger and water.
- Then put a lid on and let it cook over a fairly gentle heat, shaking the saucepan from time to time. It will probably take around 15 – 20 minutes to soften.
- Now rub the contents of the saucepan through a sieve, or purée it in an electric blender, and taste to check that there is enough sugar (although it should be a fairly sharp sauce).
- Now preheat the grill, wipe the mackerel as dry as possible with kitchen paper, season the insides of the fish, then make three diagonal slashes across the backbone of each fish and grill them for about 4-6 minutes on each side. While they’re grilling, reheat the sauce and serve it with the fish, together with new potatoes.
Mackerel with soy, ginger & rhubarb

Mackerel with soy, ginger & rhubarb at waitrose.com. Visit the Waitrose website for more rhubarb recipes and ideas
Total time: 30 minutes
Cook time: 25 minutes
Prep time: 5 minutes
Yields: 1 serving
Total time: 30 minutes
Cook time: 25 minutes
Prep time: 5 minutes
Yields: 1 serving
Nutrition:
- Calories: 520kcals
- Fat: 36.2g
- Saturated Fat: 8.2g
- Carbohydrate: 10.7g
- Sugar: 9.3g
- Protein: 34.2g
- Sodium: 2.4g
- 1 Preheat the oven to 190°C, gas mark 5. Oil a large piece of foil. Cut the rhubarb into 7cm lengths, then each length into long, thin slices. Arrange in the middle of the foil. Place the mackerel on top of the rhubarb.
- 2 Season the mackerel, then scatter over the ginger, garlic and chilli, pushing some into the cavity of the fish. Sprinkle the soy sauce, sugar and cider vinegar over the top. Fold in the sides of the foil and make a pleat along the top to make a neat parcel enclosing the fish.
- 3 Place the parcel on a baking sheet and cook for 20-25 minutes until the fish is just cooked through. It should come easily away from the bone when you put a knife into the middle. Serve with steamed rice and stir-fried pak choi.
Torched mackerel with rhubarb and fennel

Mackerel and rhubarb is a pretty classic pairing and it's done beautifully simply here. The sweet, sharp rhubarb cuts across the lightly smoky, oily fish and the fennel adds a refreshing crunch.
Provided by: Great British Chefs
Total time: 35 minutes
Cook time: 35 minutes
Yields: 4
Number of ingredients: 3
Provided by: Great British Chefs
Total time: 35 minutes
Cook time: 35 minutes
Yields: 4
Number of ingredients: 3
Ingredients:
- 4 mackerel fillets, pin-boned
- 1 bunch of fresh thyme
- 200ml of olive oil
How to cook:
- Begin by making a thyme oil. Simply submerge a bunch of thyme in the oil and store in the fridge. This is a lovely fragrant oil to have to hand which is also nice for salad dressings – it will become more flavourful after a few days of steeping
- For the rhubarb, place the water, grenadine and sugar into a small pan and bring to the boil
- Slice the rhubarb into 5cm batons. Once the grenadine mixture comes to the boil, add the rhubarb and take the pan off the heat. Leave to cool; the rhubarb will cook in the residual heat
- Once the rhubarb has cooled, prepare the fennel. Use a mandoline to very finely slice the fennel then place it in a bowl and mix with lemon juice and a generous pinch of sea salt. Leave for 10 minutes
- Season the mackerel fillets and place on a cold metal tray. Put in the fridge for 6 minutes
- After this time, use a blowtorch to char the skin on the fillets until starting to blacken
- To plate up, add a spoonful of the fennel and some drained rhubarb to the side. Top with the torched mackerel and finish with a drizzle of thyme oil