Sauce gribiche is a mayonnaise style cold egg sauce in the French cuisine, made by emulsifying hard-boiled egg yolks and mustard with a neutral oil like canola or grapeseed. The sauce is finished with chopped pickled cucumbers, capers, parsley, chervil and tarragon. It also includes hard-boiled egg whites cut in a julienne.
Sauce gribiche may be served with boiled chicken, fish (hot or cold) or calf's head.