Tarragon Holland Sauce.
Good for artichoke bottoms, “fonds d’artichauts.”
Ingredients: 2 yolks stirred as for custard, 1 oz. of fresh butter, 1 spoonful of stock, 1/2 teaspoonful of tarragon vinegar, a little salt and pepper, all cooked together.
The artichoke bottoms want stewing, or rather simmering, in stock for hours; they should not break, but just be tender enough for a straw to penetrate them. The sharp sauce improves them.