Ceviche of Cornish mackerel with a light horseradish cream, pickled cucumber and white radish

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An aesthetically stunning mackerel ceviche recipe from Michelin star chef Robert Thompson which is remarkably simple to make. Pickled cucumber and horseradish cream combine with the mackerel to create a perfect melange of flavours. Just ensure that the mackerel you buy for this seafood dish is the best you can find.

First published in 2015




Ceviche of Cornish mackerel

Pickled cucumber

  • 200ml of white wine vinegar
  • 100g of brown sugar
  • 2 bay leaves
  • 4 juniper berries
  • 1 cucumber, deseeded and cut into a matchstick shape

Horseradish cream


  • Piping bag 1-2cm nozzle
  • Parchment paper


For the pickled cucumber, bring the vinegar, sugar, bay and juniper berries to the boil in a pan and allow to cool. Submerge the cucumber in the liquor, season and set aside
To make the horseradish cream, whisk the double cream and grated horseradish until softly whipped, season with lemon juice, salt and pepper. Continue whisking until slightly firmer. Place mixture in a piping bag
Preheat the oven to 180°C/Gas mark 4. Remove the skin from the mackerel. Bake the skin between parchment paper brushed with a little olive oil for 8 minutes or until the skin has coloured nicely, allow to cool. Remove any bones down the centre of the fish fillets and dice the flesh into 1cm cubes
Arrange the white radish in the centre of 4 plates (12cm diameter approximately). Arrange the red radish slices onto 4 x 12cm circles of parchment paper that have been brushed with little olive oil. Overlap each slice to form a full circle, repeat the process working into the centre until the parchment circles are covered
Take the cubes of raw mackerel and dress with a little lime and lemon juice, olive oil and seasoning. Pipe a layer of horseradish cream over the white radish then, place the dressed mackerel on top. Finally turn the red radish over and gently place over the fish. Remove the parchment and finish with the drained cucumber and shards of crispy skin
First published in 2015

Robert Thompson's cooking is full of character and classical skill.

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