How to Caramelize Onions

How to Caramelize Onions

Side Dish
30 min
4 servings
143 kcal / serving

Learn how to caramelize onions perfectly every time. This basic cooking skill is easy, and caramelized onions add so much flavor to recipes.Step-by-step photos can be seen below the recipe card.

Ingredients

  • 1 ½ tablespoonsextra-virgin olive oil
  • 2 tablespoonsunsalted butter ((¼ stick))
  • 1 poundyellow onions (peeled and thinly sliced)
  • 1 teaspoonfresh thyme leaves
  • ¼ teaspoonkosher salt
  • ⅛ teaspoonfreshly ground black pepper

Directions

  1. 1

    Add the oil and butter to a medium-large skillet set over medium-high heat.

  2. 2

    Once the butter is melted, add the onion, thyme, salt, and black pepper.

  3. 3

    Cook until the onions start to turn brown in spots, about 5 minutes, stirring frequently.

  4. 4

    Turn the heat down to low, cover the skillet, and cook 15 minutes more, stirring occasionally. Add a splash of water as necessary if the onions start to stick to the pan or if the pan starts to get too dark.