What is the commonly used weight ratio for mirepoix onion:celery:carrot?

• A. 1:1:1
• B. 2:1:1
• C. 3:1:1
• D. 2:2:1

Answer: (B)

Mirepoix sets the flavor base for stocks, braises, and many sauces, so the weight ratio shows how dominant the onion’s sweetness and savory depth will be compared with the other vegetables. The traditional balance puts twice as much onion as celery or carrot, giving a strong onion foundation while the celery and carrot contribute aroma and complexity without overpowering it. So the commonly used weight ratio is 2:1:1. This keeps the onion front and center, while celery and carrot provide complementary notes. Using equal parts would mute the onion’s impact, and shifting to more celery and carrot would tilt the flavor away from that classic onion-forward profile. Measuring by weight helps keep this balance consistent across batches.