INGREDIENTS
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1 (10 1/2 ounce) can Campbells French onion soup
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1 1⁄2 lbs ground beef
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1⁄2 cup dry breadcrumbs
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1 egg
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1⁄4 teaspoon salt
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1⁄8 teaspoon ground black pepper, to taste
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1 tablespoon all-purpose flour
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1⁄4 cup ketchup
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3 teaspoon Worcestershire sauce, to taste
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1⁄2 teaspoon mustard powder
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1⁄4 cup water