INGREDIENTS
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1 lb mixed wild and cultivated mushrooms
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1 Tbsp unsalted butter
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3 shallots, minced
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2 slices apple wood-smoked bacon, cut crosswise into 1?4-inch pieces
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2 Tbsp extra-virgin olive oil
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2 Tbsp sherry vinegar
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1 Tbsp whole-grain mustard
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Salt and freshly ground pepper
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1 head radicchio, cored and separated into leaves
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1 cup arugula leaves, stemmed (optional)