
Photo by Chelsea Kyle
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.