Salisbury Steak with Mushrooms
Ingredients:
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1 pound lean ground beef
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⅓ cup dry bread crumbs
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¼ cup chopped onions
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1 egg, beaten
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1 teaspoon salt
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¼ teaspoon ground black pepper
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2 cups beef broth
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1 large onion, thinly sliced
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1 cup sliced mushrooms
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3 tablespoons cornstarch
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3 tablespoons water