caramelization
Noun
Meaning
(cooking) The process that converts sugars into caramel; the process of caramelizing.
(cooking) The browning of sugars by heat.
Slowly cooking the onions will cause caramelization which will bring out the sweetness and give them a brown color.
Examples
Cotton candy is the most amazing form of caramelization ever invented by man.
The cooling process helps stop the milk from undergoing the Maillard reaction and caramelization.
If you have a grill press(es) or firebrick(s) wrapped in heavy-duty aluminum foil, it is ideal to keep on hand to keep the meat from lifting up and also to maximize caramelization.
If this was meat or chicken, I'd use some kind of vinegar, like red wine or balsamic, to break the caramelization.
I rather like the caramelization that happens on the top layer of veg.
Roast them on two sheet pans, and you'll maximize the delicious caramelization.