The fastest way to cook onion is to sauté it — about 8 min. The slowest is caramelize at 40–50 min / 30–40 min.
How long does the fastest method take for onion?
Sauté: 8–12 min at Medium. Translucent and soft.
Is there a trade-off between speed and quality for onion?
Faster methods like sauté give quick results, while slower methods like caramelize (40–50 min / 30–40 min) often develop deeper flavor and more tender texture. Choose based on your time and the result you want.