Balsamic Caramelized Onions

Name: Balsamic Caramelized Onions
Prep time: 10 min
Cook time: 40 min
Total time: 50 min
Yield: 4 servings
Cuisine: French
Ingredients: 2 tablespoons olive oil; 4 large yellow onions (thinly sliced); 1/4 teaspoon salt; 2 tablespoons balsamic vinegar

50 min 4 servings Easy

All Recipes

Sweet and tangy, balsamic caramelized onions elevate any dish with rich flavour.

Prep

10 min

Cook

40 min

Total

50 min

Servings

Difficulty

Easy

Caramelized onions are a staple in many kitchens due to their versatility and rich, sweet flavour. Adding balsamic vinegar takes these onions to a whole new level, introducing a tangy depth that complements the sweetness perfectly. Whether you're topping a burger, adding depth to a sandwich, or simply enjoying them as a side, balsamic caramelized onions are sure to impress. The slow cooking process allows the natural sugars in the onions to develop, creating a rich, complex taste that is both sweet and savoury.

Instructions

Heat the oil

In a large pan, heat the olive oil over medium heat until shimmering.

Pro tip: Use a wide pan to allow even cooking of the onions.

Add the onions

Add the sliced onions to the pan and stir to coat them in the oil.

Pro tip: Ensure all onion slices are separated for even cooking.

Season and cook

Sprinkle the salt over the onions, then reduce the heat to medium-low and cook for 30-35 minutes, stirring occasionally, until the onions are golden brown and caramelized.

Pro tip: Stir more frequently if the onions begin to stick to the pan.

Add balsamic vinegar

Stir in the balsamic vinegar and cook for an additional 5 minutes, allowing the vinegar to reduce and coat the onions.

Pro tip: Taste and adjust with more vinegar if a tangier flavour is desired.

Finish and serve

Remove from heat and let the onions cool slightly before serving or storing.

Pro tip: Use immediately or store as instructed in the conclusion.

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Tips & Tricks

Use a wide pan to ensure even browning.
Stir frequently to prevent sticking and burning.
Be patient; slow cooking is key for rich flavour.
Adjust balsamic vinegar to taste for more or less tanginess.

Frequently Asked Questions

How do you caramelize onions?

Cook sliced onions slowly over medium-low heat until golden brown, about 30-35 minutes.

What are caramelized onions?

Caramelized onions are onions cooked slowly to develop their natural sugars, resulting in a sweet flavour.

How do you make caramelized onions?

Slice onions, cook them in olive oil with salt over medium-low heat until golden, then add balsamic vinegar.

How long to caramelize onions?

Caramelizing onions takes about 30-35 minutes over medium-low heat.

What temperature is best for caramelizing onions?

Medium-low heat is ideal for caramelizing onions to prevent burning and ensure even cooking.

Serving Suggestions

Serve these balsamic caramelized onions as a topping for burgers, steaks, or grilled vegetables. They also pair wonderfully with creamy cheeses on a charcuterie board or as a flavourful addition to salads. To make ahead, store cooled onions in an airtight container in the refrigerator for up to one week. Reheat gently on the stovetop or in the microwave before serving.