The main ingredient in a Caesar salad dressing is typically anchovies, providing a distinct umami flavor that characterizes the dressing. Caesar salad dressing combines anchovies with other key ingredients, including garlic, egg yolks, lemon juice, Dijon mustard, olive oil, and Parmesan cheese. This mixture is often emulsified to create a creamy texture that enhances the salad's overall taste. While the traditional recipe contains raw egg yolks, variations may use mayonnaise as a substitute for safety and convenience. The dressing complements romaine lettuce and croutons, making the Caesar salad a popular choice in many restaurants.