Onion Soup Gratin

1. 1

   In large soup pot over medium heat, melt the butter.

2. 2

   Add the onions, cover and slowly cook until soft and translucent, stirring occasionally, about 15 minutes.

3. 3

   Add sugar and continue to cook until caramelized and rich brown in color, about 10 more minutes.

4. 4

   Add broth, vinegar, and salt and pepper to taste.

5. 5

   Simmer, covered for 20 minutes.

6. 6

   Heat broiler.

7. 7

   Ladle soup into 4 oven proof bowls.

8. 8

   Top each with a piece of toasted bread and 1/4 of the cheese.

9. 9

   Broil until cheese is melted and golden.

10. 10

    Be careful removing bowls from boiler.

* Per serving · 4 servings · Values may vary.

No additional tips available.