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| onions (chopped): 1/2 cup |
| celery (chopped): 1 cup |
| carrots (chopped): 1 cup |
| white mushrooms: 8 oz |
| unsalted butter: 3/4 cup |
| all-purpose flour (unsifted): 1/2 cup |
| mustard powder: 1 tsp |
| chicken broth: 5 cups |
| cauliflower heads: 1 |
| beer: 4 cups |
| cheddar cheese: 8 oz |
| parmesan cheese (grated): 2 tsp |
| salt: 1 dash |
| black pepper: 1 dash |
Credit: allrecipes.com