Mirepoix

//cookanyday.com/cdn/shop/files/Anyday_Photos_Recipes_SquareDish_Mirepoix_1024_360x.webp?v=1727127488 Mirepoix
PT5M PT7M

Prep Time

5 mins

Cook Time

7-8 mins

Free Time

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Mirepoix is a French cooking staple — a simple mix of finely chopped onions, celery, and carrots, that’s typically sautéed to build flavor. It's the backbone of soups, stews, stuffings, sauces, and braises, adding depth and richness to countless dishes.

By cooking mirepoix in the microwave, you can shorten the cooking process without having to babysit it over a hot flame. Once cooked, these aromatics can be conveniently portioned into our silicone Anytime Freezer Trays and frozen for up to six months, ready to use as needed.

All of Anyday’s recipes are tested (and retested!) in many different microwave and home kitchens to make sure they work— and work well. Unless specified otherwise, all recipes should be cooked at full power.

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What You’ll Need

What You’ll Need

The Small Square Dish

Flash-steam small portions of food in the microwave, evenly reheat leftovers, or store food in the fridge with the lid’s airtight seal. 

2-Tbsp Anytime Freezer Tray

Freeze brown butter, sauces, and caramelized onions into 2-tbsp portions, pop out, and reheat.
Try Anyday

Select your serving size and microwave wattage in the dropdown. The recipe will change accordingly.

1-2

Select your microwave wattage in the dropdown. The cook times in this recipe will automatically change accordingly.

[[video-wattage]]

To find your microwave’s wattage, look at the front panel, the side of the door, in the back, in the user manual, or Google the model number. If both an input and output wattage are listed, use the output.

Wattage translates to how powerful the microwave is. The higher the wattage, the faster your food will cook. The lower the wattage, the longer the cook time.

When in doubt, start with less time — you can always add more.

Microwave oven by power - 700w
700w

Recommended 

Dish

The Small Square Dish

Ingredients

  • 1small yellow onion, finely minced or grated
  • 1 medium (85g) carrot, finely minced or grated
  • 2 celery stalks, finely minced or grated
  • 2 garlic cloves, finely minced or grated
  • 4 tablespoons butter or olive oil
  • 1 pinch kosher salt
  • 1 sprig of fresh thyme

Preparation

  1. Add the minced vegetables to the Square dish. If you don’t have a food processor, you shred the vegetables using the largest side of a box grater.
  2. Transfer the veggies, butter, salt, and thyme to a square Anyday dish. Cover with the lid (knob lifted).
  3. Cook in the microwave for 7-8 minutes, or until the veggies are tender and cooked through.
  4. Allow the veggies to cool completely before transferring them to Anytime Freezer Trays.  freeze for up to 6 months.

Serving suggestions & tips

Recipe notes

  • If you’re planning to freeze the mirepoix ahead of time, use butter or olive oil as they solidify well in the freezer. Avoid using vegetable oils like corn, sunflower, or grapeseed, as they won’t freeze firmly..
  • Microwave ovens vary, even with the same wattages. Adjust cooking times as needed.

All You Need to Know About Making Mirepoix in the Microwave

What is mirepoix?

Mirepoix is a French cooking staple—a simple mix of finely chopped onions, celery, and carrots, that’s typically sautéed to build flavor. It's the backbone of soups, stews, sauces, and braises, adding depth and richness to countless dishes.

Can I make mirepoix in the microwave?

Yes, you can make mirepoix in the microwave using an Anyday dish. Simply chop or grate the vegetables, combine them with fat and seasonings, cover with the lid, and cook in the microwave. This convenient cooking method significantly reduces cooking time and eliminates the need for stirring.

Can I customize the ingredients in my mirepoix?

Absolutely! This recipe follows the classic mirepoix formula, but it can be customized with different vegetables to create other foundational flavors. For example, use a trio of tomatoes, onions, peppers, for a flavorful sofrito base. In New Orleans, they call it ‘The Holy Trinity’ and use a mix of onions, celery, and green bell pepper.

Can I make mirepoix without onions or garlic?

Yes, you can modify mirepoix to meet dietary restrictions by omitting onions or garlic. Substitute with alternatives like shredded cabbage, peppers, or chayote to maintain flavor and texture.

How long can I store mirepoix in the freezer?

Mirepoix can be stored in the freezer for up to 6 months. For convenience, portion into either 1/2-cup or 2-tablespoon Anytime Freezer Trays, , cover with the lid, and freeze for up to 6 months. .

Can I use frozen mirepoix directly in recipes, or do I need to thaw it first?

You can add frozen mirepoix directly to recipes without thawing. Just place the frozen portions into your Anyday dish and cook with other ingredients such as vegetables, rice, pasta, or chicken.

Can I use any vegetable oil when making mirepoix?

For optimal results when freezing, use oils that solidify at low temperatures, such as extra virgin olive oil or butter. Other vegetable oils, like corn, sunflower, or grapeseed oil, may remain liquid in the freezer and could result in messes.

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