Description

Caramelized balsamic onions are a gourmet side dish that can elevate any meal with their sweet and tangy flavor. This easy recipe transforms everyday onions into a rich, savory treat, perfect for both special occasions and casual dinners. The delightful combination of balsamic vinegar, butter, and sugar creates an irresistible glaze that enhances main dishes, sandwiches, or salads. With minimal prep time and the option to make them ahead of time, these caramelized onions are as practical as they are delicious. Impress your guests or simply indulge in the luxurious taste of this versatile dish that complements a wide variety of meals.

Ingredients

Scale

4 medium yellow onions (about 1 1/2 pounds total)
2 tablespoons butter (melted)
1 tablespoon olive oil
⅓ cup balsamic vinegar
2 tablespoons dry white wine (or reduced-sodium chicken broth or water)
1 tablespoon sugar
¼ teaspoon salt
⅛ teaspoon ground black pepper
Fresh thyme leaves (for garnish)

Cook Mode Prevent your screen from going dark

Instructions

Preheat oven to 425°F (220°C).
In a baking dish, combine melted butter and olive oil.
Whisk in balsamic vinegar, white wine (or broth/water), sugar, salt, and pepper until well combined.
Peel onions, slice in half from stem to root, and place cut-side up in the baking dish.
Cover loosely with foil and bake for 30 minutes.
Remove foil, turn onions cut-side down, and continue baking uncovered for an additional 20–25 minutes until tender and caramelized.
Before serving, turn onions cut-side up again and garnish with fresh thyme if desired.

Prep Time: 15 minutes
Cook Time: 55 minutes
Category: Side Dish
Method: Baking
Cuisine: American

Nutrition

Serving Size: 1 serving
Calories: 120
Sugar: 10g
Sodium: 140mg
Fat: 8g
Saturated Fat: 3g
Unsaturated Fat: 5g
Trans Fat: 0g
Carbohydrates: 13g
Fiber: 2g
Protein: 1g
Cholesterol: 10mg