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Mirepoix is an essential base to so many delicious dishes. Made with just diced onions, carrots and celery, mirepoix can easily elevate your recipes by adding an incredible amount of flavor. A balanced ration of ingredients, you adjust the size of your diced vegetables to match cook time. Sweat over medium heat then use in soups, stews, sauces. All cooks should be able to whip up this easy base, so learn how to with these simple steps!
The ultimate flavor base
• Ratio: 2:1:1 (onion : carrot : celery)
• Chop: Dice evenly to match cook time (¼″ small for quick sauces)
• Technique: Sweat over medium heat – don’t brown
• Use in soups, stews, sauces, braises
Onions, celery, carrots, and butter or olive oil – That’s all it takes to make the perfect mirepoix! So, why is something so simple SO important in the kitchen? The gentle yet noticeable flavor that mirepoix gives to soups, stews, and similar dishes is just undeniably amazing.
The origin of this aromatic base is truly fascinating. Mirepoix was created in 18th century France, and named after Duke de Mirepoix, Charles Pierre Gaston Francois De Levis. However, this duke wasn’t recognized for his culinary abilities…
Rather, it’s said that the king of France at the time, Louis XV, kept the duke around because he was fond of his wife! So, in the midst of a crazy aristocratic adultery scandal, mirepoix was created.
Despite the scandal, the duke surprised everyone when his chef de cuisine created and shared the recipe for this simple aromatic base that’s now used in an abundance of French recipes. The chef named the base after his duke, and the rest is history!
Mirepoix is an essential part of French cuisine that can be used in all sorts of ways. In fact, I don’t think any wet French dish (soups, stews, etc.) would be complete without a mirepoix base.
How To Make Mirepoix
Typically, when the term “French cuisine” is used, that could mean a lot of intricate steps and ingredients that are difficult to pronounce. Well, have no fear with this recipe! You don’t need to be a professional chef to make this classic base.
- Start by preparing the vegetables. Scrub and rinse the celery and carrots. Don’t rush through this step! You want these ingredients to be perfectly clean for your mirepoix.
- Chop the vegetables. If your recipe requires a sauté or frying method, you’ll want a small dice, approximately 1/4 inch. For soups or stews, a medium dice, approximately 1/2 inch, works best.
- Prepare the skillet. Heat the butter or oil in a skillet or dutch oven over medium heat. If you’re using butter, be cautious to not heat it too long, as you don’t want it to brown.
- Cook the vegetables. Add the freshly chopped vegetables to the heated skillet. While cooking, stir frequently, until the vegetables are softened.
- Enjoy! Use your delicious mirepoix as a flavorful base in your favorite recipe.
A tip – Don’t overcook the vegetables. Adjust the heat accordingly to prevent browning or caramelization. Mirepoix is a method of “sweating” the vegetables, which coaxes out the natural sweetness without caramelizing them.
Mirepoix Dice Sizes & Use-Cases
| Dice size | Best use | Approx. time to soften* |
|---|---|---|
| ¼″ (small) | Quick sauces, pan gravies, sautéed bases | 6–8 minutes |
| ½″ (med.) | Soups, chowders, skillet dinners | 8–10 minutes |
| 1″ (large) | Braises and long-cooking stews | 10–12+ minutes |
*Times assume medium heat and a gentle sweat in oil or butter; avoid browning for classic mirepoix.
Batch Freezer Plan (Portions and Timing)
• Portion sizes: Freeze in 1-cup portions frozen flat for soup/stew bases; use ½-cup portions for sauces or single-serving meals.
• Method: Scoop into freezer bags, flatten to ½″ thick, press out air and seal.
• Label: Mirepoix (cooked/raw), portion size, date.
• Freeze & store: Lay flat to freeze; once solid, file upright to save space.
• Use: Add straight from frozen to a warm pan. If frozen raw, sauté 1–2 minutes longer to drive off moisture.
• Shelf Life: Best flavor and texture for 2–3 months; generally usable up to 4–6 months when kept frozen solid.
• Alternate portions: Freeze ½-cup “pucks” in a silicone muffin tray; pop out and bag once solid.
Mirepoix vs. Soffritto
Cuisines all around the world have their own aromatic bases. While the French created mirepoix, the Italians created soffritto. While both recipes call for onions, celery and carrots, soffritto is traditionally also made with garlic and parsley. Additionally, the ratio for mirepoix is usually 2 parts onion, 1 part carrot and 1 part celery. There is no set ratio for soffritto.
Is mirepoix similar to the Cajun Trinity?
The main similarity between mirepoix and the Cajun Trinity is that they’re both aromatic bases that require onion and celery. However, instead of using carrots, the Cajun Trinity (also known as the Holy Trinity) calls for bell pepper.
How To Use Mirepoix
The options are pretty limitless, but one of my favorites is rotisserie chicken noodle soup. It’s a perfect example of a soup that can be made even quicker with some frozen mirepoix on hand!
We also use it for this creamy Chicken Fricassee and this amazing Maryland Crab Soup!
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Mirepoix Recipe
Equipment
- 12-inch sauté pan or Dutch oven
- Chef’s knife and sturdy cutting board
- Measuring cups/spoons; spatula
Ingredients
- 2 cups yellow onion, small dice (¼″)
- 1 cup carrot, small dice (¼″)
- 1 cup celery, small dice (¼″)
- 2 Tbsp olive oil or unsalted butter
- ½ tsp kosher salt, to taste
Instructions
- Heat oil or butter in a wide pan over medium until shimmering/foamy.
- Add onion, carrot, and celery with the salt. Stir to coat and spread into an even layer.
- Sweat, don’t brown: cook, stirring occasionally, until vegetables are softened and onion is translucent, about 8–10 minutes for a ¼″ dice. Reduce heat if edges begin to color.
- Use immediately as a base for soups, stews, sauces, or cool completely for storage.
Notes
• Dice size: Smaller dice soften faster; larger dice (½″–1″) take longer (see table above).
• Storage: Refrigerate airtight up to 4 days. For meal prep, portion into 1-cup freezer bags, flatten, and label; best quality 2–3 months (usable up to 4–6 months).
• Dietary: Naturally vegan, vegetarian, and gluten-free.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
A classic French flavor base made from onion, carrot, and celery gently cooked to soften and sweeten. Used to build flavor for soups, stews, sauces, and braises.
2:1:1 by volume (onion : carrot : celery). Dice the vegetables evenly so they cook at the same rate.
No. The Cajun Trinity swaps carrot for green bell pepper (onion, celery, bell pepper). Flavor and color differ and it’s often cooked hotter.
For classic mirepoix, sweat over medium heat until softened and translucent, avoid browning. Browning is a deliberate variation that adds roasted notes.
Refrigerate airtight up to 4 days. For meal prep, portion 1-cup flats in freezer bags; freeze for best quality 2–3 months (usable up to 4–6 months).
I’ve been making this for sometime, freezing the individual compontans. I am in the process of making another batch and i think I’ll bag them all together this time.
My question is, in what quantity should I freeze them? How much is usually required for a soup recipie? Or how much do you recoment I freeze in a container?
Hi Steve, I would freeze it in 1/4 cup sizes. I wouldn’t freeze it all in one large container because most of it would go to waste if you had to thaw the whole thing.
Regarding freezing mirepoix, do you freeze it raw, or cooked?
We freeze it raw but you can freeze it cooked, as well. I prefer it raw and feel like it’s less likely to break down when you cook it.
My husband will not eat cooked carrots. Is this any good without the carrots or is there a substitute for them.?
Thanks
You can skip them but they do add a little sweetness. You could use butternut squash or sweet potato.
Thank you for your simple, but complete, definition of mirepoix. I was unaware of where it got its name. It truly is the way to begin flavoring a soup.
It really is! Thank you for appreciating the article….a lot of people asked so I thought I’d explain it in better detail.
What I love about freezing it is even a “boxed” stock, along with the mix and a little pasta makes an awesome soup fast. I love soup year round but don’t always have time to make from scratch and a really good boxed stock (buy the best if you cannot make it yourself) goes a long way with your mirepoix.
You should definitely check out my recipe for homemade beef stock, too! https://thesuburbansoapbox.com/best-beef-stock/