INGREDIENTS
1
Bay leaf, small dried
2
sprigs Flat-leaf parsley, leaves
1/2
Lemon, Juice of
3
lbs Mushrooms, mixed
1/2 cup
Onion
1 pinch
Thyme, dried
4
Egg yolks, large
12 cups
Chicken stock or low-sodium canned chicken broth, homemade
6 tbsp
All-purpose flour
1
Salt, Coarse
1/2 cup
Butter, unsalted
1 cup
Heavy cream