INGREDIENTS
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2 1-pound pork tenderloins, trimmed
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Kosher salt and freshly ground pepper
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Vegetable oil, for the grill
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3 firm-ripe peaches, halved, pitted and cut into wedges
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1/2 cup dry white wine
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1/3 cup packed light brown sugar
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1 lemon
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2 teaspoons whole-grain mustard
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1/4 teaspoon chopped fresh rosemary, plus 1 or 2 small sprigs