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You will love this sweet and subtle red onion soup recipe! Sliced red onions in a simple broth, topped with grilled brie toast!

Red Onion Soup Recipe with Brie Toast

You will love this sweet and subtle red onion soup!

Course Lunch, Soup, Starter
Cuisine Mediterranean
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings 4 people
Calories per serving 293 kcal

Ingredients

  • 1 ½ lb red onions (675 g)
  • 2 large garlic cloves
  • 1 tsp strong mustard
  • 3 cups chicken or vegetable stock (720 ml), warm
  • 5 sprigs fresh thyme
  • 2 tbsp unsalted butter
  • 4 slices French bread
  • 4 slices brie
  • 2 tbsp balsamic vinegar
  • pepper
  • salt

Instructions

  1. Peel the red onions and garlic. Then slice both roughly. Add half of the butter to a large saucepan together with the chopped garlic.

    You will love this sweet and subtle red onion soup recipe! Sliced red onions in a simple broth, topped with grilled brie toast!
  2. Place the pan over high heat until the butter has melt. Stir and cook the garlic for 3 minutes. Then add the sliced red onions and the fresh thyme sprigs.

    You will love this sweet and subtle red onion soup recipe! Sliced red onions in a simple broth, topped with grilled brie toast!
  3. Stir well and cook the onions for 3 minutes. Then pour in the warm stock. Season the onion soup with a dash of pepper.

    You will love this sweet and subtle red onion soup recipe! Sliced red onions in a simple broth, topped with grilled brie toast!
  4. Stir and bring it to a light simmer. Then put a lid on the pan and cook the soup for 5 minutes. After that pour in the balsamic vinegar. Also stir in the mustard.

    You will love this sweet and subtle red onion soup recipe! Sliced red onions in a simple broth, topped with grilled brie toast!
  5. Cook for 2 more minutes. Then check the seasoning and add extra pepper, salt, mustard or balsamic vinegar to taste. Take the pan off the heat and let it rest for now. Place the slices of French bread on a baking tray and top with the brie. Sprinkle with a little pepper and salt. Place the tray under a hot grill for 2 minutes or until the cheese has nicely melted. Remove the cheese toasts from the grill. Scoop the warm onion soup into bowls and top with the toast. Serve hot.

    You will love this sweet and subtle red onion soup recipe! Sliced red onions in a simple broth, topped with grilled brie toast!