Olivier Desaintmartin Lamb Cannon with Spring Mousseline

  • Prep time 30Min
  • Cook time 45Min
  • Technique Sear
  • Meat Lamb
  • Cut Loin
  • Serves 8

A refined dish featuring tender lamb loins with a creamy potato and cauliflower mousseline, tender white asparagus, crisp carrot chips, and a rich truffle-infused demi-glace.

Ingredients

  • 2 boneless lamb loins (cap on)
  • 240ml (1 cup) cauliflower florets
  • 3 Yukon Gold or white potatoes, peeled
  • 2 bunches white asparagus (2 spears per person)
  • 340g butter (for mash, lamb & asparagus)
  • 60ml (¼ cup) double cream
  • 240ml (1 cup) demi-glace
  • 1 tbsp truffle or mushroom paste (no truffle oil)
  • 1 bunch parsley, washed and finely chopped
  • 1 carrot, peeled and thinly sliced (mandoline)
  • 240ml (1 cup) red wine
  • 1 shallot, peeled and chopped
  • 1 sprig thyme
  • 1 glass brandy
  • 1 glass port
  • Lamb stock (homemade or store-bought)
  • Salt, pepper, and oil, to taste

Method

  1. In a saucepan, reduce the red wine with shallots and thyme until almost dry. Add the port and brandy, cooking for 5 minutes. Add lamb stock and simmer until sauce consistency is reached. Strain, then stir in the truffle paste. Season with salt and pepper.
  2. Boil potatoes in salted water for 15 minutes, then add cauliflower and cook until tender. Drain, mash, and return to the pan. Bring the cream to a boil, add it to the mash with 227g cold butter cut into small pieces. Whisk until smooth and silky. Season to taste.
  3. Peel the asparagus and steam or cook until al dente. Dry on paper towels (do not refresh in cold water). Season and sear in bubbling browned butter.
  4. Deep-fry the carrot slices at 176°C until golden but not browned.
  5. Clean and season the lamb loins with salt and pepper. Sear in oil and butter over high heat until medium-rare. Rest in a warm place.
  6. Remove excess fat from the pan, add the sauce, cook for 5 minutes, strain into a small saucepan, check seasoning, and whisk in 57g butter over low heat.
  7. Add any juices from the resting lamb to the sauce. Reheat lamb briefly in a hot oven if needed (1–2 minutes).
  8. To serve: Place three slices of lamb on the plate with a space in the centre. Pipe the potato mousseline in the middle. Toss asparagus with parsley and place into the mousseline. Add a few carrot chips atop the mash. Pour sauce around the lamb.