"When I want to impress company, these satisfying sandwiches are my first pick on the menu. I serve the au jus sauce in individual bowls for dipping. —Florence Robinson, Lenox, Iowa..."
INGREDIENTS
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2 large onions, cut into 1/4-inch slices
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1/4 cup butter, cubed
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1 beef rump roast or bottom round roast (3 to 4 pounds)
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5 cups water
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1/2 cup soy sauce
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1 envelope onion soup mix
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1-1/2 teaspoons browning sauce, optional
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1 garlic clove, minced
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12 to 14 French rolls, split
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1 cup shredded Swiss cheese