INGREDIENTS
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Vegetable oil, for greasing the grill
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1 pineapple, peeled, cored, and cut into 1/2-inch rings, crosswise
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1 jalapeño, chopped, or more to taste
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1/4 cup chopped cilantro leaves and upper stems
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3 cups pineapple juice
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1 cup white or silver tequila
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3/4 cup freshly squeezed lime juice
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1/2 cup agave syrup or simple syrup
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2 tablespoons kosher or coarse sea salt
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2 tablespoons ground piquín chile or Mexican dried ground chile
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1/2 cup turbinado or dark brown sugar