INGREDIENTS
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1½ lbs ground beef
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½ cup breadcrumbs
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2 tsp dry mustard
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4 dashes wocestershire sauce
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1 tbsp ketchup
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salt and pepper
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1 onion, thinly sliced
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1 tbsp oil
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1 tbsp butter
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2 cups beef broth or stock (the stock will have a fuller, richer flavor)
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another 4 dashes worcestershire
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another 1 tbsp ketchup
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1 tbsp cornstarch