INGREDIENTS
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1-1/2 pounds boneless, skinless chicken breasts
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salt and pepper, to taste
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1/2 cup plus 4 teaspoons all-purpose flour, divided
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4 tablespoons olive oil (or as needed), divided
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1/4 cup diced shallots
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1 teaspoon minced garlic
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8 ounces cremini (brown button) mushrooms, stemmed and sliced
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1/2 teaspoon dry thyme or 1 heaping teaspoon fresh thyme leaves
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3/4 cup Marsala wine
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1 cup low-sodium chicken broth
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1 tablespoon butter, optional
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Italian flat-leaf parsley, for garnish