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How to Caramelize Onions

Caramelized onions with deep golden-brown color and soft, glossy texture
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Slowly cooked onions transformed into a deeply savory, gently sweet foundation ingredient. This method focuses on controlled heat, proper moisture management, and building flavor through fond development.

Ingredients

Scale
  • 4–6 large onions (yellow, Vidalia (sweet), and/or white), sliced
  • 6 tablespoons unsalted butter
  • 1/2 teaspoon kosher salt
  • Water or dry white wine, as needed for deglazing (added in small splashes)

Instructions

  1. Slice the onions evenly and set aside.
  2. Heat a wide cast-iron or stainless steel pan over medium heat.
  3. Add the butter and allow it to melt.
  4. Add the onions and salt; cook, stirring occasionally, until softened and beginning to release moisture.
  5. Continue cooking until the onions begin to brown, adjusting heat as needed.
  6. As fond develops at the bottom of the pan, deglaze with small amounts of water or dry white wine, scraping up and incorporating the solids back into the onions.
  7. Repeat this process of browning and deglazing until the onions are evenly browned and fully softened.
    Remove from heat before the onions become overly dark or bitter.

Equipment

Notes

  1. Butter provides excellent flavor. Using a slightly more generous amount helps the onions cook evenly and prevents them from drying out, while proper deglazing keeps the richness balanced.
  2. Cooking time will vary depending on the number of onions and the heat level, but allowing up to 60 minutes ensures proper flavor development.

Find it online: https://foodienoise.com/how-to-caramelize-onions/