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caramelized onions in a white bowl on a white and brown plate on a white surface with a white and black linen

How to Make Caramelized Onions

This step-by-step recipe post shows you how to make caramelized onions. These onions are cooked low and slow creating deliciously sweet and golden onions that you will adore! Perfect for burgers, scrambles, steak, soups, the options are endless! 

  • Total Time: 50 minutes
  • Yield: 1/2 Cup Caramelized Onions 1x


  • 2 Tablespoons Olive Oil
  • 1 Tablespoon Butter
  • 3 Medium Onions
  • 1/4 Teaspoon Salt
  • 1/4 Teaspoon Sugar


  1. Peel the onions, cutting the top and bottom off, then slice in half and remove the center/core stem of the onion. Then slice into strips lengthwise. 
  2. In a large skillet over low medium heat add the olive oil and butter and let warm. Add the onions and move around to coat the onions in the liquid fat and also break the layers of onion apart. Let the onions cook for 5 minutes then stir in the salt and sugar. 
  3. For the next 30-45 minutes keep the onions on low-medium heat, depending on the strength of your burner, you'll want to stir the onions every 5 minutes or so. Letting the onions sit will help them carmelize and brown, if the heat is too high the onions will burn, so when in doubt go lower and take your time. 
  4. Once the onions are caramelized let cool and store in an air-tight container in the fridge. 


You can double the recipe just be sure to use a large pan for all of the onion. 

  • Author: Elizabeth Waterson I Confessions of a Baking Queen
  • Prep Time: 5
  • Cook Time: 45
  • Category: Side
  • Method: Saute
  • Cuisine: American

Keywords: how to caramelize onions, easy caramelized onion recipe,

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