
Sweet, deeply savory, and impossibly silky, this slow-cooked onion jam is the kind of condiment that makes everything it touches taste more special. Two pounds of yellow onions melt down over nearly an hour of patient stovetop cooking until they reach a rich, amber depth that no shortcut can replicate. A touch of honey rounds out the natural sweetness, while apple cider vinegar adds just enough brightness to keep the whole thing from feeling heavy. Fresh thyme ties it all together with a clean, herbal note that feels elegant without any fuss. For anyone managing histamine sensitivity, condiments and spreads are often the trickiest category — most store-bought options rely on fermented bases, aged ingredients, or preservatives that can trigger a reaction. This recipe keeps things clean and straightforward, using only fresh, whole ingredients and skipping anything aged or processed. The apple cider vinegar is used in a small, controlled amount purely for balance, and the finished jam is best enjoyed fresh or within three days, which also helps keep histamine formation in check. Making a batch at home means you know exactly what went into the jar. With eight servings per batch, it goes a long way spread over roasted vegetables, stirred into a grain bowl, or layered onto a simple piece of toast.
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Learn more →8 servings







Melt the butter in a large heavy-bottomed skillet over medium heat until foamy and just beginning to subside.
Add the sliced onions and salt, tossing to coat. Cook over medium heat, stirring every 3–4 minutes, until the onions have fully wilted and turned pale gold, about 20 minutes. If the onions begin to stick or brown unevenly before they have softened, add 1 tbsp of water and scrape up any fond.
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