Chateaubriand a La Maison Recipe

Ingredients

• 2 (8 ounce) beef tenderloin steaks, 1 1/2 inch thick
• 2 tablespoons butter
• 1/8 teaspoon salt
• 1/8 teaspoon white pepper
• 1/4 teaspoon cayenne
• 1 teaspoon Dijon mustard
• 1 tablespoon parsley, chopped
• 1 teaspoon sherry wine
• 2 teaspoons Worcestershire sauce
• 1 ounce cognac
• 1 tablespoon ketchup
• 2 tablespoons whipping cream
• 4 mushrooms, sliced (sauteed in following ingredient)
• 1 teaspoon butter