SEAFOOD SAUCE is a broad term that encompasses a variety of sauces used to enhance the flavor of seafood dishes. MORNAY is a classic French sauce made with butter, flour, and milk, often flavored with cheese and herbs. TARTAR sauce is a condiment typically made with mayonnaise, pickles, capers, and other seasonings. TARTARE is a French sauce made with hard-boiled egg yolks, anchovies, capers, and olive oil. All three sauces are popular accompaniments to seafood dishes.