https://www.seriouseats.com/2019/06/how-to-caramelize-onions-classic.html
應該得,問題係耐+你都係要stir下佢,成日開一個190C嘅焗爐都好煩下同埋會降溫,亦會唔均勻,有啲會燶咗咁


如果好似serious eats咁話幾個鐘得閒攪下佢,我覺得未必方便咗
Start the onions on the stovetop until they've softened and released some of their liquid, then transfer them to a moderate 375°F (190°C) oven and let them cook in there,
stirring occasionally, until they reach your desired results.
This can take a very long time, possibly several hours.
The disadvantages are the overall longer time (even if you're a little less tied to the stove during it), and potentially less even results; I've found that onion residue is more likely to
scorch on the sides of the pot or pan, for instance, risking slightly burnt flavors. I prefer to use the stovetop method, but if the oven appeals more, go for it.