INGREDIENTS
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1 4 - 5 pound bone-in pork shoulder
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3 tablespoons chili powder
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Salt
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Ground black pepper
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1 large onion, cut into wedges
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3 cups root beer
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3 - 4 canned chipotle peppers in adobo sauce, finely chopped*
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2 - 3 teaspoons canned adobo sauce
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24 flour or corn tortillas, warmed**
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Accompaniments, such as shredded lettuce, diced tomatoes, and sliced fresh jalapeno peppers* (optional)