1/2 cup cream
Rub butter and flour together over the fire, add milk and salt. Rub the yolks of the eggs to a paste with the cream and stir into the sauce, then add trumese and sliced whites of eggs. Heat to just boiling, remove from fire, stir in quickly the flavored orange juice and vanilla and serve at once. 1/2 cup mushrooms may be added with the trumese. In that case, the mushroom liquor may form a part of the liquid instead of the whole half cup of milk.