"This recipe makes enough polenta to refrigerate for later use. As it chills, it becomes firm and sliceable -- perfect for broiling or pan-frying...."
INGREDIENTS
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4 cups skim milk
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6 cups low-sodium chicken broth
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1 1/3 cups quick-cooking polenta
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Coarse salt and ground pepper
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1 pork tenderloin (1 pound), cut into 12 equal slices
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1 tablespoon plus 1 teaspoon extra-virgin olive oil, plus more for dish
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2 medium white onions, halved and thinly sliced lengthwise
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1 bunch Swiss chard (3/4 pound), stems cut into 1/2-inch pieces and leaves roughly chopped
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2 to 3 teaspoons sherry vinegar
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2 teaspoons unsalted butter