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| onions: 4 |
| salted butter: 2 Tbl |
| olive oil: 2 Tbl |
| salt |
| black pepper |
| all-purpose flour (unsifted): 2 Tbl |
| herbes de provence: 1/2 tsp |
| fresh sage (chopped): 1/4 tsp |
| garlic powder: 1 Tbl |
| soup - beef broth: 1 qt |
| beer: 12 fl oz |
| chicken bouillon: 1 cube |
| worcestershire sauce: 2 Tbl |
| French bread: 10 slices |
| swiss cheese: 10 slices |
| grated parmesan cheese: 1/4 cup |
Credit: Food.com