Caramelized Onion Jam
This rich and savory-sweet caramelized onion jam is made by slowly cooking onions with brown sugar and balsamic vinegar to create a luscious, jammy spread. Perfect for adding gourmet flavor to sandwiches, cheese boards, and grilled dishes.
Ingredients
- 4 large yellow onions, thinly sliced
- 2 tablespoons olive oil
- 2 tablespoons unsalted butter
- 2 tablespoons brown sugar
- 3 tablespoons balsamic vinegar
- 1 teaspoon fresh thyme leaves (or 1/2 tsp dried thyme)
- 0.5 teaspoon kosher salt
- 0.25 teaspoon freshly ground black pepper
- optional pinch of red pepper flakes or splash of port/wine
Instructions
- Heat olive oil and butter in a large skillet over medium heat until melted.
- Add the thinly sliced onions and stir to coat them in the oil and butter.
- Cook the onions over medium-low heat, stirring occasionally, for 25–30 minutes until they become deep golden and caramelized. Adjust heat as needed to prevent burning.
- Stir in the brown sugar and thyme, cooking for another 2 minutes to caramelize the sugar.
- Add the balsamic vinegar and optional splash of port or wine. Simmer for 3–5 minutes until the mixture thickens to a jam-like consistency.
- Season with kosher salt, black pepper, and red pepper flakes if using. Taste and adjust seasoning.
- Remove from heat and let cool to room temperature before transferring to a clean jar or airtight container.
Nutrition
Serving: 1peopleCalories: 35kcalCarbohydrates: 4gProtein: 0.2gFat: 2gSaturated Fat: 1gSodium: 80mgFiber: 0.2gSugar: 4g
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