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sauteed onions in a skillet with a wooden spoon

Sautéed Onions

These sautéed onions are quick and easy to make! They're deeply flavorful, slightly sweet, and perfectly tender. Add these sautéed onions to a sandwich, salad, or simply enjoy them as a side dish!
Course Side Dish
Cuisine American
Keyword 15 minute, caramelized onion, fewer than 5 ingredients
Prep Time 0 minutes
Cook Time 15 minutes
Total Time 15 minutes
Servings 6
Calories 59kcal


  • Large skillet


  • 1 tablespoon olive oil
  • 1 tablespoon butter
  • 3 onions sliced, see Notes
  • ½ teaspoon salt


  • Heat olive oil and butter in a large heavy-bottomed skillet over medium heat.
  • Add in the onions, toss to coat in the butter and oil then leave to cook for 10 minutes, stirring every minute or two.
  • Sprinkle in the salt and cook for another 5 minutes or until desired doneness.


  • Make it Vegan: Use one tablespoon of vegan butter instead of regular butter to make these sautéed onions vegan-friendly!
  • Onions: I prefer yellow onions for this recipe, though you can use any type of onion you'd like.
Recipe yields approximately 6 servings. Actual number of servings will depend on your preferred portion sizes. Nutritional values shown are general guidelines and reflect information for 1 serving out of 6. Actual macros may vary slightly depending on specific brands and types of ingredients used.
To determine the weight of one serving, prepare the recipe as instructed. Weigh the finished recipe, then divide the weight of the finished recipe (not including the weight of the container the food is in) by 6. Result will be the weight of one serving.


Serving: 1serving | Calories: 59kcal | Carbohydrates: 5g | Protein: 1g | Fat: 4g | Saturated Fat: 2g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 1g | Cholesterol: 5mg | Sodium: 213mg | Potassium: 81mg | Fiber: 1g | Sugar: 2g | Vitamin A: 59IU | Vitamin C: 4mg | Calcium: 13mg | Iron: 1mg | Net Carbs: 4g