Caramelized onions are a simple yet game-changing addition to countless dishes. With their deep golden color and rich, sweet-savory flavor, they elevate burgers, sandwiches, pastas, and more. In this post, you’ll learn the easiest way to make perfectly caramelized onions every time!
Course Snack
Cuisine American
Keyword onions
Prep Time 5 minutesminutes
Cook Time 40 minutesminutes
Total Time 45 minutesminutes
Servings 4
Calories 80kcal
Equipment
Large skillet or pan
Wooden spoon
Knife and cutting board
Ingredients
2large onionsyellow or sweet onions work best
2tbspbutter or olive oil
½tspsalt
1tspsugaroptional, enhances sweetness
2tbspwater or brothoptional, to deglaze the pan
Instructions
Slice the onions: Cut onions in half, then slice them thinly into half-moons.
Heat the pan: Place a large skillet over medium-low heat and add butter or oil.
Cook the onions: Add onions to the pan, sprinkle with salt, and stir to coat in the fat.
Slowly caramelize: Cook on low heat, stirring occasionally, for 30-40 minutes. If onions start to stick, add a splash of water or broth to deglaze.
Optional sugar: If you prefer a sweeter flavor, add sugar about halfway through cooking.
Finish and serve: Once onions are deep golden brown, remove from heat and use as desired.
Notes
Use a heavy-bottomed pan to prevent burning and ensure even cooking.
Patience is key—low and slow cooking brings out the best flavor.
Stir occasionally but not too often, so onions have time to develop color.
Deglaze with water, broth, or balsamic vinegar to intensify the flavor and prevent sticking.