Skillet Caramelized Onions
Make skillet caramelized onions with butter, balsamic vinegar, and thyme! These sweet, savory onions are perfect for burgers, sandwiches, and steak.
Ingredients
- 5 white onions
- 1 tablespoon butter
- 1 tablespoon oil
- 1 tablespoon balsamic vinegar
- ½ teaspoon black pepper powder
- 1 teaspoon thyme
Instructions
- Peel and thinly slice the white onions.
- Transfer to a skillet along with butter and oil. Add the black pepper powder.
- Cook on medium heat and continue stirring. Add balsamic vinegar and a little bit of brown sugar (optional, to speed up caramelization) and turn down the heat.
- Cook until the onions have developed a deep golden brown color, then add the thyme and take off heat.
Notes
- Slice the onions thinly and evenly so they soften and cook at the same rate.
- Use a wide, heavy-bottomed skillet to allow the onions to cook evenly without overcrowding.
- Cook over medium heat initially, then reduce the heat once the onions begin to soften and brown.
- Stir frequently, especially toward the end of cooking, to prevent the onions from sticking or burning.
- Add a splash of water if the skillet becomes too dry before the onions are fully caramelized.
- Adjust the balsamic vinegar to taste, or add a pinch of brown sugar for a slightly sweeter finish.
- Swap white onions for yellow or sweet onions, or replace thyme with rosemary for a different flavor.
- Serve over burgers, grilled cheese sandwiches, steak, pizza, or mashed potatoes.
- Store leftovers in an airtight container in the refrigerator for up to 4 days, or freeze in small portions for longer storage.
Nutrition
Calories: 116kcalCarbohydrates: 14gProtein: 2gFat: 6gSaturated Fat: 2gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.1gCholesterol: 8mgSodium: 29mgPotassium: 212mgFiber: 2gSugar: 6gVitamin A: 115IUVitamin C: 11mgCalcium: 37mgIron: 0.4mg
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