What key ingredient is included in the Caesar salad?

The key ingredient in a Caesar salad that makes it distinctive is croutons. Croutons are typically small, crunchy pieces of toasted bread that add texture and contrast to the otherwise crisp greens in the salad. They are often seasoned and can be made from various types of bread, enhancing the overall flavor profile.

Other ingredients commonly found in a Caesar salad include romaine lettuce, Parmesan cheese, Caesar dressing, and sometimes additional toppings like grilled chicken or anchovies, but croutons are iconic to this particular dish. Their inclusion is what makes the Caesar salad a unique experience, offering both flavor and a satisfying crunch.