Quenelles de Brochet Sauce Nantua

Quenelles de Brochet — silken, cloud-like dumplings of pike mousse poached in court-bouillon and blanketed in a bisque-pink crayfish cream — are the great showpiece of Lyonnais haute cuisine, with roots in 19th-century bouchons. The dish is demanding, delicate, and deeply rewarding, representing the apex of French charcuterie artisanale.

Serves: 4

Ingredients

Quenelles

• 400g (14 oz) skinless pike or other white fish fillet (cod or whiting work well), very cold
• 200ml (¾ cup) double cream, very cold
• 2 large eggs
• 1 tsp fine sea salt
• Pinch of white pepper
• Pinch of freshly grated nutmeg
• 1 litre (4 cups) fish stock or court-bouillon, for poaching

Sauce Nantua

• 30g (2 tbsp) unsalted butter
• 1 shallot, finely diced
• 1 tbsp (15g) tomato paste
• 150g (5 oz) whole cooked crayfish or prawns, shells reserved
• 200ml (¾ cup) dry white wine
• 200ml (¾ cup) fish stock
• 200ml (¾ cup) double cream
• Salt, cayenne pepper, and lemon juice to taste

Instructions

1. Blitz the very cold fish to a paste in a food processor. Add eggs and blend again. With the motor running, pour in the cold cream in a steady stream until just incorporated — do not over-mix. Season with salt, pepper, and nutmeg. Chill the mousse for at least 1 hour.
2. Make the sauce: sauté shallot in butter until soft. Add crayfish or prawn shells, tomato paste, and wine. Simmer 5 minutes. Add fish stock and cream; simmer 15 minutes. Strain through a fine sieve, pressing the shells. Season with salt, cayenne, and lemon.
3. Bring poaching liquid to a bare simmer (never boiling). Using two wet tablespoons, shape oval quenelles and slide into the liquid. Poach for 8–10 minutes, turning once, until just firm and puffed. Remove with a slotted spoon.
4. Arrange quenelles in a gratin dish, spoon over the Nantua sauce, and bake at 200°C (400°F) for 10 minutes until bubbling and lightly golden.
5. Serve immediately — quenelles deflate quickly.

Cook's Notes: Keeping all components cold while making the mousse is crucial for a stable emulsion. The quenelles will puff dramatically in the oven; this is correct. Serve as a starter or light main with crusty baguette.