Here’s where I almost lost my mind. Real caramelized onions take 35 to 45 minutes, minimum. And I honestly think most recipes lie to you when they say "under 30 minutes." You’re not looking for brown; you’re looking for that deep, jammy, mahogany-gooey magic that tastes like a hug from a French chef.
The secret is low heat and a little water. You want them to sizzle gently, not aggressively fry. Every 5 to 6 minutes, you give them a stir, scrape up the fond (that brown stuff stuck to the pan—that’s pure flavor), and add a splash of water or broth. If you rush with high heat, you get bitter, burnt bits. Trust me, I’ve burned three batches this year alone. It’s a quiet tragedy.