Homemade Beef Wellington - Recipe Fund

Ingredients

• 1.5 pounds (700g) beef tenderloin
• Salt and black pepper (to taste)
• 2 tablespoons olive oil
• 8 slices prosciutto
• 1 pound (450g) cremini or button mushrooms, finely chopped
• 3 cloves garlic, minced
• 1 tablespoon fresh thyme leaves
• 1/2 cup dry white wine
• 1 sheet puff pastry, thawed if frozen
• 1 egg, beaten (for egg wash)