What does Onion do in soup?

Chef's answer
Sauteed onions can provide both caramel flavors (from the sugars in the onions) and Maillard reaction compounds, depending on how they are sauteed. Thus onions can supply a range of "umami" flavors for soup which otherwise you need to get through roasting animal bones and other tissue (e.g. brown veal stock)..
Frequently asked Questions 🎓
A wide array of vegetables can be used, including onions, carrots, celery, green peppers, red peppers, and summer squash. One tip is to saute them in butter or olive oil before adding them to the meatloaf. This will ensure they release more of their moisture into the meatloaf.
Using sauteed onions instead of raw ensures the onions don't turn out crunchy and adds extra moisture to the meatloaf. Moistened breadcrumbs, keep the meatloaf moist and tender. The ketchup in the meatloaf mixture as well as the glaze adds sweetness and an extra depth of flavor.
A wide array of vegetables can be used, including onions, carrots, celery, green peppers, red peppers, and summer squash. One tip is to saute them in butter or olive oil before adding them to the meatloaf. This will ensure they release more of their moisture into the meatloaf.
Place a large skillet or saute pan over medium-high heat. If you are cooking very lean ground beef, heat a tablespoon or two of vegetable oil or extra virgin olive oil to the skillet. Add onions or other chopped seasoning vegetables about 2 to 3 minutes before the beef is ready, or cook them separately.
These deep-fried onion rings get extra texture and crispiness from the cornmeal in the batter. ... Soak the onions in milk or buttermilk before coating them with the batter.
Soak them in a bowl of cold water for a few minutes before using. Soaking the onions for 15 minutes or so in cold water will help to soften the their flavor, mellowing it out a bit.
A wide array of vegetables can be used, including onions, carrots, celery, green peppers, red peppers, and summer squash. One tip is to saute them in butter or olive oil before adding them to the meatloaf. This will ensure they release more of their moisture into the meatloaf.
A few more cooking questions 📍