"Root beer adds a warm caramel note to these fun sandwiches. Serve with baked sweet potato chips...."
INGREDIENTS
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2 teaspoons canola oil
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3/4 cup prechopped onion
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12 ounces 90% lean ground sirloin
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1/2 cup unsalted tomato sauce
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1/4 cup bottled chili sauce (such as Heinz)
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1/4 cup root beer
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1 tablespoon Worcestershire sauce
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2 teaspoons minced garlic
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1 teaspoon dry mustard
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1 teaspoon chili powder
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1 teaspoon tomato paste
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4 (1 1/2-ounce) hamburger buns, toasted