Steamed Cornish Cod, stuffed mussels, white asparagus, Morteau sausage, saffron and tarragon

Emily Roux

Emily Roux

9th April 2026
Emily Roux

Steamed Cornish Cod, stuffed mussels, white asparagus, Morteau sausage, saffron and tarragon

75 min

Emily Roux’s steamed Cornish cod with stuffed mussels, white asparagus, Morteau sausage, saffron and tarragon is a beautifully balanced seafood dish with classic French influence. 


Delicate cod is paired with rich beurre blanc, savoury stuffed mussels and tender white asparagus, while Morteau sausage adds depth and a subtle smoky note. 

Finished with saffron, tarragon and parsley purée, it is an elegant plate that brings together refinement, colour and bold flavour.

This recipe serves four.

Ingredients

cod

  • 500g Cornish cod loin

asparagus and sausage

  • 4 XL white asparagus
  • 1 cooked Morteau sausage
  • 8 St Austell bay mussels (cooked & removed from the shell)
  • olive oil
  • fennel tops
  • golden saxifrage
  • salt and pepper

beurre blanc

  • 3 chopped shallots
  • 40cl of white wine
  • 15cl of white wine vinegar
  • 200gr of cold cubed butter
  • 15ml of tarragon oil
  • 2gr of saffron

chicken mousse

  • 145gr Chicken breast
  • 15gr egg white
  • 90gr of double cream
  • 3gr of salt
  • 1 lemon zested
  • A pinch of Piment d’Espelette
  • 30gr chopped Chives

parsley purée

  • 3 large bunches of curly parsley
  • 3 large bunches of flat parsley
  • 400gr of double cream (reduced by half)

tarragon oil

  • 40gr of picked tarragon
  • 150g of neutral oil

Method

cod

Slightly salt the loin of cod (1.7% of the total weight) a few hours before cooking.
Steam at 65 C until 46-48C is achieved at core temperature.

beurre blanc

Peel and roughly chop the shallots.
Place in a large saucepan together with the wine and vinegar.
Leave to simmer gently until the liquid has reduced by ¾.
Add the cubed butter and whisk until emulsified.
Pass through a sieve, and add the saffron whilst still hot.
Season to taste and incorporate tarragon oil.

chicken mousse

Roughly cut the chicken breast and place all the ingredients into a PACOJet container. Place in the freezer.
Once completely solidified, churn 3 times.
Place into a bowl and incorporate a brunoise of Morteau sausage, piment d’espelette, lemon and chives.
Delicately place the mousse in a pipping bag and stuff your cooked mussels.
Steam at 75 C for approximately 3 mins or until cooked.

parsley purée

Pick both parsleys, blanch in salted water (3-4 mins) and press any excess water out.
Spread out on a tray lined with a cloth overnight in the fridge.
Next day, mix in a VITAMIX with double cream. You want to obtain a silky and thick creamy consistency (resembling extra thick double cream).
Season to taste with salt and pepper.

white asparagus

Delicately peel the asparagus from just below the tip down and remove the woody ends.
Blanch in salted water for 3-4 minutes, until tender. Place in ice cold water.
Cut each asparagus at an angle and reheat in a pan with a drizzle of olive oil and brunoise of morteau sausage.

tarragon oil

Mix both ingredients in a blender until you achieve 65 C.
Pass through a fine sieve and transfer into a pipping bag.
Leave in the fridge overnight to separate the sediment from the oil.

Built by Chefs. Powered by You.

For 17 years, The Staff Canteen has been the meeting place for chefs and hospitality professionals—your stories, your skills, your space.

Every recipe, every video, every news update exists because this community makes it possible.

We’ll never hide content behind a paywall, but we need your help to keep it free.

If The Staff Canteen has inspired you, informed you, or simply made you smile, chip in £3—less than a coffee—to keep this space thriving.

Together, we keep the industry connected. Together, we move forward.