Keeping this in view, what do I do if I put too much onion?
Even a few minutes' gentle cooking at low heat will take the edge off the onions' flavor. Water can play a part too. With minced onion, just putting it in a strainer and rinsing it under the tap often helps. Soaking sliced onion in ice water for at least 30 minutes will mellow its flavor dramatically.
Beside above, can you over caramelize onions? Your onions have to be sliced just right to make perfect caramelized onions. If they're too thick, the outsides of the onions might get mushy before the middle is cooked through; if they're too thin, they might burn too easily or cook before they have attained the right flavor.
Considering this, how long do you cook onions for?
Cook until caramelized. Keep cooking the onions, stiring frequently, until they are brown all over and completely limp. Caramelized onions take some time — anywhere from 20 minutes to 45 minutes total cooking time depending on how deeply caramelized you like your onions.
Does it take 4 hours to caramelize onions?
6. At this point, you'll need to watch the onions very carefully, stirring every couple of minutes or so. Cook until the onions have been reduced to a deep, reddish-brown marmalade, watching that they do not dry out, about 1 more hour, making 3 to 4 hours total.