Ingredients for 4 servings

servings
  1. 1 kg (2.2 lb) of roussette (cleaned and gutted by the fishmonger)
  2. 1 carrot
  3. 1 leek
  4. 2 shallots
  5. 1/4 glass of vinegar
  6. 60 g (2.1 oz) of butter
  7. 2 tablespoons of flour
  8. 1 lemon for serving
  9. 1 small jar of capers
  10. Parsley
  11. Thyme
  12. Bay leaf
  13. Salt, pepper