This egg salad recipe is a play off of a gribiche which is a French egg salad. Sometimes used as a condiment, a salad dressing, or on open face toast, this recipe utilizes fresh herbs like tarragon and parsley combined with the briny capers and bold Dijon to elevate this dish beyond what we grew up eating. Traditionally the yolks are emulsified with the mayonnaise, mustard and vinegar to create a dressing for the whites; if you have the time, I recommend doing this. Also try using fresh basil if you cannot find tarragon.