Seared mackerel and horseradish ciabattas

Seared mackerel and horseradish ciabattas
  • Serves icon Serves 2
  • Time icon Takes 15 minutes to make, 10-15 minutes to cook

A quick and easy recipe of mackerel and horseradish on ciabatta with hard-boiled eggs and herb salad.


  • 4 ciabatta slices
  • 4 tbsp extra-virgin olive oil, plus a splash extra to cook the mackerel
  • 1 garlic clove, crushed
  • 1 tbsp creamed horseradish
  • 1 tbsp lemon juice
  • 4 Sainsbury’s mackerel fillets (400g pack), or similar
  • Knob of butter
  • 80g bag Sainsbury’s herb salad, or similar
  • 2 medium free-range eggs, boiled for 6 minutes until semi-hard boiled, quartered


  1. Preheat the oven to 180°C/fan160°C/gas 4. Put the bread in a baking tray, drizzle with half the oil, then sprinkle over the garlic. Season, then bake, turning once, for 10-15 minutes until crispy. Remove and cool.
  2. Meanwhile make the dressing – whisk the remaining oil with the horseradish and lemon juice, then season. Score each mackerel fillet 2-3 times diagonally across the skin. Season.
  3. Heat a splash of oil and a knob of butter in a non-stick pan over a medium-high heat and fry the fish, skin-side down, for 2 minutes. Turn down the heat, then carefully flip and cook for 1 minute more.
  4. Meanwhile, toss the salad leaves in two-thirds of the dressing, then layer the ciabatta, mackerel and salad on 2 plates with the eggs gently placed on the side. Drizzle over the remaining dressing and serve.


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