The fruity zing of rhubarb works brilliantly with mackerel; this dish of lip-smacking flavours and lively textures makes a delicious and healthy springtime supper.
Ingredients
For the mackerel
4 slices white bread, crusts removed
4 mackerel fillets, all bones removed
small bunch fresh dill
sea salt and freshly ground black pepper
2 tbsp groundnut oil
large knob of unsalted butter
For the rhubarb sauce
4 sticks rhubarb, washed and cut into 5cm/2in pieces
200g/7oz caster sugar
1 lemon, juice only
For the salad
5 tbsp groundnut oil
3 tbsp white wine vinegar
8 radishes, leaves attached
2 apples, preferably Granny Smith
1 head of frisée, inner leaves picked
Preparation method
For the mackerel, use a rolling pin to roll out the slices of bread as thinly as possible into a rectangle. Place a mackerel fillet in the middle of each piece of bread and scatter a little dill over the fish.
Season well with salt and freshly ground black pepper and then wrap up tightly to form a parcel. Repeat with the rest of the bread and fish. Place on a plate, transfer to the fridge and leave to chill until needed.
For the sauce, place the rhubarb in a saucepan with the sugar and a splash of water. Bring to the boil and then simmer until soft.
Allow the rhubarb to cool slightly, then transfer it to a food processor and blend until smooth. Pass through a sieve into a clean pan and add a little lemon juice to taste. Keep warm until needed.
For the salad, whisk together the groundnut oil and vinegar in a small bowl to make a dressing and season with salt and freshly ground black pepper.
Finely slice the radish and then core and finely slice the apple. Combine with the frisée and radish leaves in a large bowl then toss with the dressing.
To finish the fish, heat two tablespoons of groundnut oil in a large frying pan, then add the mackerel parcels. Fry for two minutes, or until crisp and golden-brown and then turn and fry for a further minute.
Add a large knob of butter and baste the parcels until golden-brown. Remove from the pan and drain on kitchen paper.
Slice the parcels in half and serve with the rhubarb sauce and salad.