INGREDIENTS
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1 pound lean ground beef
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1 egg, lightly beaten
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3 teaspoons ketchup, divided
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1 teaspoon mustard
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2 teaspoons Worcestershire sauce, divided
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1 teaspoon garlic powder
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1 teaspoon onion powder
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1 teaspoon salt
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2 tablespoons olive oil
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2 tablespoons all-purpose flour
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2 cups beef stock