Salmon: fillet the salmon and put the carcass in a large saucepan.
Add one leek, the bottle of wine, five carrots and the remaining spices and do everything together in about 1 1/2 hours.
Now chop the remaining five leeks and saute them lightly with butter in a frying pan with a lid. Season the salmon with salt and pepper, then place it on the leek and continue to steam the covered frying pan at a low temperature for about 15 minutes until soft. Small potatoes go well as a side dish.
Sauce: Melt butter in a saucepan, add flour and while stirring quickly pour half a l to one l of the clear soup, season with salt, pepper and the juice of half a lemon.
Tip: Always use aromatic spices to refine your dishes!