Beef Tenderloin Roast with Marsala Cream Sauce and Smashed Potatoes

Bahan-bahan (6 porsi)

• 1 pound baby potatoes, halved if large
• 1 (4 pound) beef tenderloin, trimmed of fat and tied
• 1 stick (1/2 cup) salted butter, melted
• 2 tablespoons dijon mustard
• 2 tablespoons Worcestershire sauce
• 1 tablespoon chopped fresh thyme
• 2 cloves garlic, chopped
• salt and crushed black pepper
• 1/2 cup grated parmesan
• 2 tablespoons salted butter
• 2 cups sliced cremini mushrooms
• 2 cloves garlic, chopped
• 2 teaspoons chopped fresh thyme
• 1 cup marsala wine
• 2 cups heavy cream