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caramelized onions on a red spoon
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4 from 1 vote

Caramelized Onions

Learn how to caramelize onions and then use the onions to make French onion soup, appetizers, sauces, patty melts, and so much more!
Course Side Dish
Cuisine American
Keyword caramelized onions
Prep Time 5 minutes
Cook Time 45 minutes
Servings 6 servings
Calories 94kcal
Author Jen


  • 1 tbsp Olive Oil
  • 3 tbsp Butter
  • 3 medium Onions thinly sliced
  • 1/4 Water if needed


  • Add oil and butter to a large skillet over medium heat.
  • Once melted and oil is hot, add onions.
  • Cook over medium heat for 45-60 minutes, stirring every few minutes to prevent burning.
  • If pan becomes too dry, add a little more oil and slightly reduce temperature.
  • Cook until onions are browned with a rich caramelized flavor.


Calories: 94kcal | Carbohydrates: 5g | Protein: 1g | Fat: 8g | Saturated Fat: 4g | Cholesterol: 15mg | Sodium: 53mg | Potassium: 80mg | Fiber: 1g | Sugar: 2g | Vitamin A: 177IU | Vitamin C: 4mg | Calcium: 14mg | Iron: 1mg