
Caramelized onions are one of those kitchen transformations that feel almost magical โ a pile of raw sliced onions slowly coaxing itself into something deeply golden, jammy, and rich over low, patient heat. What makes this version especially clean is how few ingredients it takes to get there: avocado oil, yellow onions, sea salt, and an optional splash of balsamic vinegar for a subtle tang and glossy finish. No flavor packets, no bottled seasoning blends, no mystery additives โ just real food doing what real food does best. Many store-bought caramelized onion products or seasoning shortcuts sneak in artificial flavor compounds to mimic that slow-cooked depth, but here the flavor builds entirely on its own through time and technique. The key is patience and that steady medium-low heat, scraping up the browned bits and letting the natural sugars in the onions do all the work. A splash of water if things get too dry, a taste and salt adjustment at the end, and you have a deeply savory condiment that belongs on everything from burgers to grain bowls to eggs. Once you make a batch this way, it's hard to go back to anything else.
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Heat the avocado oil in a large (12-inch) skillet over medium heat until shimmering.
Add the sliced onions and salt, then stir to coat evenly in the oil. Cook, stirring every 3โ4 minutes, until the onions have wilted and released most of their moisture, about 10 minutes.
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