What is the ideal ratio of onions, carrots, and celery in a traditional mirepoix?

The ideal ratio in a traditional mirepoix consists of 50% onions, 25% carrots, and 25% celery. This proportion is significant for achieving a well-balanced flavor base in soups, stews, and sauces.

Onions are the primary ingredient in mirepoix, providing a sweet and savory foundation when sautéed. They also contribute to the overall aroma and depth of the dish. The carrots add a subtle sweetness and a hint of earthiness, while celery introduces a fresh, slightly bitter note that enhances the complexity of flavors.

The specified ratio emphasizes the dominance of onions to create a robust flavor profile, with the vegetables complementing one another rather than overpowering. This balance is essential in classical cooking techniques, ensuring the mirepoix serves as an effective flavor-building tool in various recipes.