"Southern Salisbury steak is a dish the whole family will love, Tender beef patties smothered in a rich and delicious onion mushroom gravy...."
INGREDIENTS
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1 pound ground beef
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½ cup panko bread crumbs
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1 egg
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2 cloves garlic minced
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2 tablespoons ketchup
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1 beef bullion cube, crumbled
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2 teaspoons dry mustard
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½ tablespoon Worcestershire sauce
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3 tablespoons butter, divided
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1 medium onion sliced
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6 ounces mushrooms sliced thick
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2 tablespoons all-purpose flour
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2 cups beef stock