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Caramelized Onions

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Caramelized Onions are slowly cooked until golden, tender, and deeply flavorful. This simple kitchen staple adds sweet and savory richness to burgers, pasta, sandwiches, and more.

Ingredients

  • 3 large yellow onions, thinly sliced
  • 2 tablespoons unsalted butter
  • 1 tablespoon olive oil
  • 1/2 teaspoon salt
  • 1/4 teaspoon black pepper
  • 1 teaspoon fresh thyme leaves (optional)
  • 1 teaspoon balsamic vinegar (optional)

Instructions

  1. Peel and thinly slice onions evenly.
  2. Heat butter and olive oil in a large skillet over medium heat until melted.
  3. Add sliced onions and salt, stirring to coat evenly.
  4. Cook over medium heat for about 10 minutes, stirring occasionally, until softened.
  5. Reduce heat to medium-low and continue cooking, stirring every few minutes to prevent burning.
  6. Cook for 25–35 additional minutes until onions are deep golden brown and significantly reduced.
  7. Add thyme or balsamic vinegar during the final 5 minutes if desired.
  8. Remove from heat once onions are soft, caramelized, and jam-like in texture.

Notes

  • Low and slow cooking prevents burning and develops deeper flavor.
  • Red onions can be used for a slightly sweeter variation.
  • Store refrigerated in an airtight container for up to 5 days.
  • Freeze in small portions for up to 3 months.
  • A wide, heavy-bottomed skillet works best for even cooking.

Nutrition

Find it online: https://thefamilycooking.com/caramelized-onions/