Onion Soup

• 12 medium Spanish onions, sliced
• 250 g butter
• 3 tablespoons flour
• 2 liters chicken stock (hot)
• 100 g day-old white bread, cut into small squares
• 2 egg yolks
• 2 teaspoons vinegar

1. Melt the butter in a pan.
2. Add the onions and cook till translucent (15mins).
3. Add the flour stir into the onions and cook for a few minutes.
4. Add the hot stock and bring back to the boil.
5. Once boiled add the bread and cook the soup for 15 more minutes, stir frequently.
6. Beat the egg yolks with the vinegar, mix some of the soup with them, then stir the mixture into the rest of the soup, and mix well.
7. Simmer for a few more minutes.

spanish onions, butter, flour, liters chicken, white bread, egg yolks, vinegar

Taken from www.food.com/recipe/onion-soup-321232 (may not work)