Instructions
Rub the bottom of a stewpan with butter. Add the shallots, herbs, bay leaves, carrots, pounded mace, and seasoning.
Stir over a clear medium heat for 10 minutes.
Add the Madeira or sherry. Simmer gently for 30 minutes.
Strain this aromatic liquid through a sieve and pour it over the salmon in a clean pan.
Stew the salmon in the strained gravy until cooked through, approximately 20-25 minutes.
Once the salmon is cooked, remove most of the cooking liquid, leaving just enough to keep the salmon moist.
Transfer the reserved cooking liquid to a separate saucepan. Add the white stock.
Thicken with a butter-and-flour roux, stirring until smooth. Add the anchovy essence, lemon juice, cayenne, and salt. Simmer until sauce reaches a coating consistency.
Lay the salmon on a hot serving dish. Pour part of the sauce over it.
Serve the remaining sauce separately in a tureen alongside the dish.