Caramelized Red Onions

caramelized onions added to a burger with a fork

I have the secret to perfect Caramelized Red Onions right here! Once you learn how to caramelize onions this way, you'll find every excuse to make them. Ready in 20 minutes!

Course Condiment, Side Dish

Cuisine American

Keyword caramelize red onions, caramelized onions recipe, caramelized red onions, caramelizing red onions

Prep Time 5

Cook Time 20

Total Time 25

Servings servings

Calories 206kcal

Author Isabel Laessig

Equipment

Skillet

Ingredients

2 Tablespoons unsalted butter
1 red onion cut into thin slices
2 Tablespoons brown sugar
3 Tablespoons balsamic vinegar
1 teaspoon soy sauce
salt to taste
pepper to taste

Instructions

Melt butter in a large skillet over medium-high heat. Add sliced red onions to the pan and saute for 2-3 minutes.
2 Tablespoons unsalted butter, 1 red onion
Mix in brown sugar, balsamic vinegar, soy sauce, salt, and pepper.
2 Tablespoons brown sugar, 3 Tablespoons balsamic vinegar, 1 teaspoon soy sauce, salt, pepper
Stir and continue cooking until the onions are golden-brown and soft, around 15-17 minutes.
Enjoy with burgers, steaks, and more!

Video

Notes

Red wine vinegar, vermouth, or whiskey can be used in place of balsamic vinegar, if you wish.
I love the flavor of red onions for caramelized onions, but you can also use sweet yellow or white onions if you prefer.
Remember, onions shrink when caramelized. You may need more than you think if you're cooking for a large group. It's best to make extra and freeze any leftovers you don't need right away.

Nutrition