Ingredients for 4 servings

  • 8 scallops,
  • 24 prawns (or langoustines) raw, peeled,
  • 9 tablespoons of crème fraîche,
  • 1 tablespoon of shrimp butter,
  • 2 tablespoons of Cognac,
  • 1 truffle (optional),
  • 1 cup béchamel: 1/2 liter of milk, 40 g of butter, 40 g of flour, salt, pepper, nutmeg.