Onions, carrots, celery. Pretty boring by themselves. Working together, these stable vegetables can form a taste sensation on which to build countless stews, soups, and sauces.
The triumvirate of taste is known as a mirepoix (French), sofrito (Spanish), and soffritto (Italian). The general rule of thumb is 2: 1: 1 ratio of onions, carrots, and celery. The holy trinity in Cajun and Louisiana Creole cooking has a slight variation switching green bell pepper for carrots.
The ingredients are sweated in fat until soft. This is not a saute. This does take awhile, perhaps 25-30 minutes.
Mirepoix and its cousins might not excite you because they are vegetables and texture issues. The beauty of mirepoix is that the process makes them better tasting. As for the texture, you should start with finely minced versions of the vegetables in the sweat process. If you have a food processor, cut the vegetables into small pieces and then put in the food processor.
After the mirepoix process, you can use a stick blender to reduce texture issues. Ideally, you would add a liquid to make the stick blending easier whether that be stock or tomatoes as examples. You still have to cook them down even more in whatever else you are making. You may need that stick blender a second time.
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Certain dishes such as stews can involve a mirepoix process where the pieces are larger and then taken out of the final dish, leaving their essence.
I like the essence of all those ingredients but not the texture. I tolerate raw onions on rare occasions (Detroit coney dog, pickled herring).
I made 2 batches of red sauces with mirepoix. The first batch was really thick but added some chicken stock to create an ideal ratio. You can taste the essence of the ingredients. You know that you are getting vegetable servings in the sauce besides tomato in the sauce.
You can cut the onions, carrot, and celery into tiny pieces and put them in a food processor. If you are truly lazy/busy, Trader Joe's sells a pre-cut mirepoix.
Sweating the vegetables will take time. The total cooking time, sweating and sauce making, was a little over an hour, stick blender time included.
You can make the mirepoix in advance on a Sunday and then add the mixture to dishes in later in the week.
If you are trying to impress a future partner that you can cook, a mirepoix is an ace in the deck. If nothing else, mirepoix is a French word that usually impresses someone who already likes you.
photos credit: me