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| salted butter: 3 Tbl (divided) |
| chicken breasts: 4 breasts (halved) |
| white mushrooms: 2 cups (fresh sliced) |
| cornstarch: 1 1/2 Tbl |
| salt: 1/4 tsp |
| black pepper: 1/8 tsp |
| 2% milk: 1 cup |
| lemon juice: 2 tsp |
| worcestershire sauce: 1/2 tsp |
| sour cream: 1/2 cup |
Credit: Food.com