Recipe: Perfect Onion soup au gratin

Onion soup au gratin.

You can cook Onion soup au gratin using 7 ingredients and 4 steps. Here is how you cook it.

Ingredients of Onion soup au gratin

1. It's 2 dozen of Bermuda onions.
2. You need 2 tablespoons of flour.
3. You need 2 tablespoons of butter.
4. It's 11/2 quarts of strong beef stock.
5. You need of Salt pepper Parmesan cheese.
6. You need of Celery salt.
7. You need of Paprika.

Onion soup au gratin step by step

1. Peel onions under water slice thin fry in butter until brown.
2. Add flour mixed with butter to onions.
3. Add stock cook in double boiler.
4. Serve hot with grated cheese and paprika.