Description
Learn the best way to cook onions sweet by mastering the technique for perfect caramelized onions. This kitchen staple recipe transforms sharp onions into a deep, savory topping for dips, pasta, and burgers.
Ingredients
Scale
- 3 large yellow onions, thinly sliced
- 2 tablespoons unsalted butter (or olive oil for vegan option)
- 1 teaspoon salt
- 1 teaspoon sugar (optional, for faster browning)
- 1 tablespoon water (optional, for deglazing)
Instructions
- Slice the onions thinly and uniformly. Uniform slices help them cook evenly.
- Place a large, heavy-bottomed skillet over medium-low heat. Add the butter or oil.
- Add the sliced onions and salt to the skillet. Stir to coat them evenly with the fat.
- Cook the onions slowly, stirring every 5 to 7 minutes. Keep the heat low to prevent burning. This slow cooking process draws out the natural sugars.
- After about 15 minutes, the onions will be soft and translucent. If brown bits stick to the bottom of the pan (fond), add 1 tablespoon of water and scrape them up. This adds flavor.
- Continue cooking, stirring more frequently as they begin to brown, usually around the 25-minute mark. If you are using sugar, add it now.
- Cook until the onions reach a deep, rich brown color and have a jammy texture. This usually takes 35 to 45 minutes for the best flavor.
- Remove from heat. These sweet, savory onions are now ready to use as a gourmet onion side dish or topping.
Notes
- For a quick onion hack, you can add a pinch of baking soda (about 1/8 teaspoon) with the salt to speed up the browning process, though the flavor depth may be slightly less complex than the slow-cooked onions method.
- These caramelized onions are excellent for making a creamy onion pasta ingredient or topping for burgers.
- To make a vegan caramelized onion recipe, use olive oil instead of butter.
- Store leftovers in an airtight container in the refrigerator for up to one week.
- Prep Time: 10 min
- Cook Time: 40 min
- Category: Side Dish
- Method: Stovetop Sauté
- Cuisine: General
Nutrition
- Serving Size: 1/4 cup
- Calories: 75
- Sugar: 8
- Sodium: 290
- Fat: 4
- Saturated Fat: 2
- Unsaturated Fat: 2
- Trans Fat: 0
- Carbohydrates: 10
- Fiber: 1
- Protein: 1
- Cholesterol: 8