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| salted butter: 3 1/2 Tbl |
| white mushrooms: 8 oz |
| garlic: 1 clove (crushed) |
| fresh tarragon: 2 tsp (finely chopped) |
| salt |
| black pepper |
| heavy whipping cream (fluid): 1 1/4 cups |
| lemon zest: 1 tsp (grated) |
| parmesan cheese (grated): 1/2 cup (freshly grated) |
| pasta (penne): 1 lb |
Credit: Food.com