Nantua Sauce recipe 343
tomato purée (passata)
Strain and reserve. Heat the olive oil in a sauté pan over medium heat.
When the oil is very hot, add the live crayfish and sauté for 1 minute.
Add the garlic bulb (halved), mirepoix, peppercorns, bay leaf and button mushrooms.
Cook for another minute.
Add the cognac and flame the pan.
Pour the contents into a saucepan and mash them up with a spoon.
To the sauce pan with the crayfish, add the chopped tomato, parsley, tarragon and tomato puree.
Deglaze the sauté pan with 4 cups of fish stock (enough so that it will cover ingredients in the saucepan) and pour the contents of the deglazed pan into the saucepan with the crayfish and vegetables.
Roughly mash the contents of the saucepan again.
Cook for 20 minutes.
Strain the contents of the saucepan with the crayfish through a chinois into another sauté pan.
Reduce the liquid by two thirds.
Add the cream, salt, pepper, and cayenne pepper.
Reduce another 5 to 10 minutes to one-half.
Strain and reserve.