Onion Soup

Ingredients:

1 lb yellow onions
3 tablespoons butter
1 tablespoon flour
1 apple
4 cups beef stock
1/2 cup lager beer
1/2 teaspoon dried marjoram
Salt, pepper
1 bunch fresh chives, chopped
5 tablespoons Emmenthal cheese, grated
2 tablespoons croutons (optional)

Preparation:

Halve, peel and thinly slice the onions. Melt the butter in a saucepan, add the onions and sauté until onions turn translucent. Quarter, core, peel and thinly slice the apple. Combine it with the onions and sauté for a few minutes. Gradually add the flour, then the beef stock and beer. Season to taste with marjoram, salt and pepper. Simmer over medium-low heat for 15-20 minutes. Before serving sprinkle the soup with chives, grated Emmenthal and/or croutons.