
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 the course of an hour. This version keeps things beautifully simple, relying on avocado oil, yellow onions, and a pinch of sea salt to do all the heavy lifting. The optional splash of balsamic vinegar at the end adds a subtle tang that makes the whole thing taste almost restaurant-worthy. Every ingredient here is straightforward and naturally free from any seafood-derived additives, so there's no need to scrutinize labels for hidden fish sauce or anchovy-based flavor boosters that sometimes sneak into store-bought condiments and sauces. The low-and-slow cooking method is the real secret โ patience and occasional stirring coax out the onions' natural sugars without any shortcuts. Pile these onto burgers, stir them into soups, spoon them over roasted vegetables, or eat them straight from the pan โ no judgment. Once you have a batch in the fridge, you'll find yourself reaching for them constantly.
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Learn more โ6 servings




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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