Mustard Free Caramelized Onion Jam

Total time1 hr 5 min

Prep time10 min

Cook time55 min

4.9

(16)

Sweet, deeply savory, and impossibly rich, this caramelized onion jam is the kind of condiment that makes everything it touches taste more special. Slow-cooked yellow onions transform over low heat into something almost unrecognizable — silky, amber-colored, and packed with natural sweetness that no shortcut can replicate. A splash of apple cider vinegar and a drizzle of honey balance the richness perfectly, while fresh thyme adds a subtle herbal note that keeps the whole thing from feeling too sweet. For anyone navigating mustard sensitivities, store-bought jams, chutneys, and relishes can be a minefield — mustard seed and mustard flour sneak into a surprising number of jarred condiments. This recipe keeps things clean and straightforward, with every ingredient clearly in view and nothing hidden in a label. Spread it on a cheese board, pile it onto a burger, or stir it into a pan sauce — it earns its place in just about any meal. A small jar of this in the fridge is genuinely one of the most useful things you can make.

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Ingredients

8 servings

2 tbsp unsalted butter
2 lb yellow onions (about 4 medium), thinly sliced
½ tsp fine sea salt
2 tbsp honey
2 tbsp apple cider vinegar
1 tsp fresh thyme leaves
2 tbsp water, plus more as needed

Instructions

1
Melt the butter in a large heavy-bottomed skillet over medium heat until foamy and just beginning to subside.
2
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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