"How to get through the holidays without a can of cream of mushroom soup using a homemade version...."
INGREDIENTS
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1/2 cup unsalted butter
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1/2 cup minced onion
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1/4 cup minced celery
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6.5 ounce sliced mushrooms
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1 teaspoon kosher salt
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3/4 cup all purpose flour
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3 cups chicken broth
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1 cup half and half