INGREDIENTS
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For the beef and bouillon
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1 pound cube steak or boneless beef chuck (see above), cut into small pieces
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1 small onion, sliced
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1 small carrot, trimmed, peeled and cut into 1-inch-long pieces
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1 small celery stalk, trimmed and cut into 1-inch-long pieces
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2 garlic cloves, smashed and peeled
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2 parsley sprigs
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1 bay leaf
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1 teaspoon salt
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1/4 teaspoon black peppercorns
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6 cups water
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1/2 beef bouillon cube (optional)
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For the filling
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1-1/2 tablespoons olive oil
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1/2 pound sausage, sweet or spicy, removed from casings if necessary
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1 teaspoon tomato paste
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Salt and freshly ground pepper
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For the topping
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2 pounds Idaho (russet) potatoes, peeled and quartered
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1/2 cup whole milk
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1/4 cup heavy cream
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3 tablespoons unsalted butter, at room temperature, plus 1 tablespoon butter, cut into bits
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Salt and freshly ground pepper
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1/2 cup grated Gruyere, Comte, or Emmental
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2 tablespoons freshly grated Parmesan (optional)