I've had this conversation with people many times, a consequence is that some of them have no idea what caramelised onions actually are - they think it's the state you get to after 10 mins. Thinly slice 10 onions, dump them in a big pot with some oil on a medium heat for 10-15 minutes stirring frequently. Then turn the heat down to low and cook for a further 45-60 mins, check on it and stir every 10 mins or so. When…
The real issue is simply a vague use of the word "caramelize," not that they expect you to be at the stove a half-hour longer than they say. The vast majority of recipes that say "caramelize" simply mean "cook until softened and sweet." No, technically the onions won't be caramelized after 15 minutes, but very few recipes actually want you to caramelize the onions. Take an Italian pasta sauce. As an Italian who has c…
However the true use of the word "Caramelized Onions" are onions that have gone through the cooking process of caramelization. This process requires three things: sugar, heat, and time. Just like making candy caramels, you are performing the same process to onions. This makes true caramelized onions actually sweet, with savory notes throughout.
Most recipes bastardize the word "Caramelize". They tell you to caramelize onions, when in reality you don't actually want caramelized onions (which in many cases would actually ruin the recipe), instead they want softened onions with browned to a light caramel color, which is a completely different thing.
This is like a recipe needing turkey but asking for chicken. Like sure, it will probably work, but it is clearly different and not entirely substitute.
French Onion soup is the most common use of real caramelized onions, which is sweet and savory soup. It could not be made with browned onions, that would ruin it. Coq-a-vin is another popular recipe that uses caramelized onions, which complements the prominent wine flavors of the dish into a sweet, savory, gamey (usually made with game hens), and earthy delight of a meal. The caramelized onions are what pull that dish together and critical part of the recipe. This meal takes a long time to cook, similar to a gourmet version of American potroast.