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Caramelized Onions Recipe


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4.4 from 48 reviews

  • Author: Sara
  • Total Time: 55 minutes
  • Yield: 16 servings

Description

This classic recipe for caramelized onions transforms simple onions into a rich, sweet, and deeply flavorful topping perfect for enhancing a variety of dishes. Slowly cooked with butter and olive oil, and perfectly salted to draw out natural sugars, these caramelized onions add a savory-sweet depth to burgers, pizzas, sandwiches, and more.


Ingredients

Ingredients

  • 3 medium onions
  • 1 Tbsp olive oil
  • 1 Tbsp butter
  • ½ tsp salt


Instructions

  1. Slice: Peel the onions and slice them into even strips to ensure uniform cooking.
  2. Melt fats: In a pan over medium-high heat, melt the butter together with the olive oil.
  3. Coat onions: Add the sliced onions to the pan and use tongs to coat them evenly with the melted butter and oil mixture.
  4. Season: Sprinkle salt over the onions to help release their moisture, which aids in the caramelization process.
  5. Cook initially: Allow the onions to cook at medium-high heat for 5 to 10 minutes, stirring occasionally, until they soften and start to turn golden brown.
  6. Lower heat: Reduce the heat to medium and continue cooking for 35 to 40 minutes, stirring every few minutes to prevent burning or sticking.
  7. Finish: When the onions have reached a deep golden brown color and have a sweet aroma, they are done and ready to serve.

Notes

  • Use a heavy-bottomed pan for more even heat distribution.
  • Stir frequently once the heat is lowered to avoid burning the onions.
  • Caramelizing onions takes time but yields the best flavor — patience is key.
  • Leftover caramelized onions can be stored in an airtight container in the refrigerator for up to one week.
  • For enhanced sweetness, a pinch of sugar can be added before cooking, though it’s not necessary.
  • Prep Time: 10 minutes
  • Cook Time: 45 minutes
  • Category: Side Dish
  • Method: Stovetop
  • Cuisine: American