This sauce is really just another variant of Hollandaise, but it is sufficiently famous to be dignified with a separate heading. The sauce calls classically, for a variety of fresh herbs which may be difficult to obtain. Adequate substitutes and dried herbs solve the problem. The only real problem is tarragon. Do not use dried tarragon. If you cannot obtain fresh tarragon, use tarragon packed in vinegar.
Ingredients
Preparation
Combine in a small heavy saucepan vinegar, wine, peppercorns, shallots, chevril or parsley, and tarragon with liquid or the extra tarragon vinegar. (Reserve the leaves from half of the stalks and put aside.) Cook over high heat until reduced to 1/3 cup or less. Strain through very fine sieve or cloth. Make Hollandaise Sauce using strained liquid instead of lemon juice or vinegar. Very finely chop and add remaining chevril or parsley and remaining tarragon.
