INGREDIENTS
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2 medium onions, cut into thin wedges
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1/2 cup water
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1 2 - 2 1/2 - pound boneless pork sirloin roast
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1/2 teaspoon chili powder
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1/2 teaspoon ground cumin
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1/2 teaspoon ground black pepper
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1/4 teaspoon garlic powder
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1 cup bottled low-calorie barbecue sauce
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1/4 cup cider vinegar
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1 tablespoon honey
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1/4 teaspoon ground ginger
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10 whole wheat hamburger buns, split and toasted