Unsalted butter; melted - I like to use clarified butter
3
Egg yolks
salt and pepper to taste
1
In a saucepan, combine the vinegar, wine, peppercorns, shallots, parsley, and tarragon. Bring the liquid to a boil and reduce to 1 tablespoon. Add 1 tablespoon of water. Let cool.
2
Add the egg yolks and whisk, over low heat (use a double-boiler), until frothy, about 3 to 4 minutes.
3
In a steady stream, add the butter until the sauce thickens.
4
Season with salt and pepper to taste.
Yield: 1 cup
Tips
For a smoother sauce, strain the sauce before serving