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Caramelized Onions Recipe

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3.9 from 1 review

Deliciously sweet and deeply flavorful caramelized onions, cooked slowly to bring out their natural sugars and create a perfect golden-brown finish. This simple recipe enhances any dish with rich, savory depth and is easy to prepare using just a few ingredients.

  • Total Time: 1 hour 5 minutes
  • Yield: Serves 8

Ingredients

Ingredients

  • 2 tablespoons extra-virgin olive oil
  • 4 medium yellow onions, halved and sliced
  • ½ teaspoon sea salt

Instructions

  1. Heat the oil: Heat 2 tablespoons of extra-virgin olive oil in a 12-inch cast iron skillet over medium heat, ensuring the oil coats the pan evenly.
  2. Sauté onions briefly: Add 4 medium yellow onions, halved and sliced, to the skillet and sauté for about 5 minutes until the onions begin to soften and become translucent.
  3. Add salt and reduce heat: Sprinkle ½ teaspoon sea salt over the onions, reduce the heat to medium-low to allow slow cooking, and continue stirring every few minutes.
  4. Caramelize onions: Cook the onions gently for 50 to 80 minutes, stirring frequently to prevent sticking or burning. The onions should become very soft and develop a rich, golden-brown color. Adjust heat as necessary—lower it if onions stick or burn, or increase slightly if more caramelization is desired after 50 minutes, stirring continuously.

Notes

  • Use a heavy-bottomed skillet like cast iron for even heat distribution.
  • Be patient and stir often to achieve perfect caramelization without burning.
  • If onions stick to the pan, reduce heat immediately and add a splash of water if necessary to deglaze.
  • Caramelized onions can be stored in the refrigerator for up to a week or frozen for longer storage.
  • Author: Daisy
  • Prep Time: 5 minutes
  • Cook Time: 1 hour
  • Category: Side Dish
  • Method: Stovetop
  • Cuisine: American