Cornish turbot cooked in brown butter, garden courgette, shrimp and nasturtium sauce

Mark Birchall

Mark Birchall

26th July 2024
Mark Birchall

Cornish turbot cooked in brown butter, garden courgette, shrimp and nasturtium sauce

270 min

Seasonal dish current on our tasting menu

Ingredients

Seaweed Oil

  • 30g Chives
  • 30g Parsley
  • 30g Dill
  • 300g Grapeseed Oil
  • 5g Maldon Salt
  • 15g Nori seaweed

Mullet Sauce (base)

  • 20kg Roasted Red Mullet
  • 500g Rendered Veg
  • 20L Water
  • 20L Chicken Stock
  • 300g Lardo Trim

Infusion

  • 150g Tomato Juice
  • 50g Noilly Prat
  • 50g Brandy
  • 100g Fennel Seeds
  • 5g Fennel Seeds
  • 5g Coriander Seeds
  • 1 Star Anise
  • 20g Tarragon
  • 10g Fennel Tops
  • 1 Red Chilli
  • 400g Mullet base

Dashi Stock

  • 2 litres full of bonito
  • 2 litres of hot water

Dashi Gel

  • 200g Dashi Vinegar
  • 150g Dashi Stock

Smoked Courgette Puree

  • 4kg Courgettes
  • 250g Butter
  • Salt

Shrimp Mousse

  • 300g Raw Hake
  • 100g chopped brown shrimp
  • 12g salt
  • 12g sugar
  • 1 egg
  • 100g double cream
  • 10ml Noily Prat
  • 90g lobster Butter

Nasturtium flower butter sauce

  • 100% brown chicken stock
  • 200% white wine
  • 50% turbot heads roasted
  • 30% shallots
  • 15% ginger
  • 10% leeks whites only
  • 10% garlic
  • 2.5% red chilli
  • 2% nasturtium flowers
  • 1% thyme
  • 0.5% star anise

Finished sauce

  • 100% stock base
  • 25% crème fraiche
  • 145% butter – 50/50 nasturtium butter and regular unsalted
  • Xanthan to thicken
  • 8% lemon juice
  • 6% marigold vinegar
  • 10% nasturtium flowers

Method

Mullet Sauce

Roast the mullet in the oven until golden brown. Put the roasted mullet, along with the rest of the ingredients into a large pan and simmer for 2 hours. After 2 hours pass of the stock and reduce.

Infusion

Toast the seeds in a pan. Add a small amount of butter. Add the noilly prat and reduce then the brandy and reduce. Add the tomato juice and mullet stock. Bring to a simmer then add the rest of the ingredients and infuse for 10 minutes.
To finish the sauce add butter to emulsify and verbena vinegar.

Dashi Stock

Steep for 30 minutes and pass

Dashi Gel

Combine, taste and set with ultratex.

Smoked Courgette Puree

Cut the green skin off the courgettes leaving about 5mm of white on with the skin. Slice up small. Then in a large pan add half a block of butter. Wait until the butter is hot then fry the courgette skin in the butter until soft.
Once cooked put in a cullender to drain off the butter. Then take a tea towel and drain off any moisture from the courgette. Blend until smooth. Pass and chill.
Once the puree is cold put in a tray and smoke for 5-10 minutes.

Shrimp Mousse

Blend dry ingredients together. Then add wet ingredients. Mussel stock at the end to get the right consistency.
Add blended nori to the mix. Cook at 60°c for 8 minutes.

Nasturtium flower butter sauce

Reduce everything apart from stock and roasted heads to half. Add the stock and heads and simmer for 45 minutes.

Finished sauce

Add everything apart from butter and flowers into pan and bring to boil. Once boiling take off the heat and mix in the butter then blend with flowers until smooth. Pass and season with salt.

To serve

Heat sauce and add freshly chopped nasturtium leaves.

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