"Using dark meat makes these burgers extra-juicy and flavorful...."
INGREDIENTS
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2 jars (12 ounces each) red-pepper relish, such as Fourth Creek
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1 small onion, chopped
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2 cloves garlic, chopped
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1 tablespoon plus 1 teaspoon extra-virgin olive oil, plus more for brushing
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2 tablespoons low-sodium soy sauce
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2 pounds ground dark turkey
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4 teaspoons Worcestershire sauce
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1 teaspoon Dijon mustard
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1 slice soft white bread, torn into pea-size pieces (1 cup)
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Coarse salt and freshly ground pepper
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3 tablespoons Heinz Chili Sauce, plus more for brushing
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1/2 cup mayonnaise
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2 cups packed finely shredded kale
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1/2 teaspoon balsamic vinegar
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8 potato rolls, split
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4 tablespoons unsalted butter, melted