Beef Wellington

Stages of cooking

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1. Preheat the oven to 425 degrees F (220 degrees C).
   
2. Place beef tenderloin in a baking dish. Spread 2 tablespoons softened butter over beef. Dotdash Meredith Food Studios
   
3. Bake in the preheated oven until browned, 10 to 15 minutes. Remove beef from the pan and reserve pan juices; allow beef to cool completely. Dotdash Meredith Food Studios
   
4. Increase oven temperature to 450 degrees F (230 degrees C).
   
5. Melt 2 tablespoons butter in a skillet over medium heat. Sauté onion and mushrooms in butter for 5 minutes. Remove from heat and let cool. Dotdash Meredith Food Studios
   
6. Mix paté and remaining 2 tablespoons softened butter together in a bowl; season with salt and pepper. Spread paté mixture over beef. Top with onion and mushroom mixture. Dotdash Meredith Food Studios
   
7. Roll out puff pastry dough to about 1/4-inch thickness and place beef in the center. Dotdash Meredith Food Studios
   
8. Fold up and seal all the edges, making sure the seams are not too thick. Place beef in a 9x13-inch baking dish, cut a few slits in the top of dough, and brush with egg yolk. Dotdash Meredith Food Studios
   
9. Bake in the preheated oven for 10 minutes. Reduce heat to 425 degrees F (220 degrees C) and continue baking until pastry is a rich, golden brown, 10 to 15 minutes. An instant-read thermometer inserted into the center should read between 122 to 130 degrees F (50 to 54 degrees C) for medium rare. Set aside to rest. Dotdash Meredith Food Studios
   
10. Meanwhile, place reserved pan juices in a small saucepan over high heat. Stir in beef broth and red wine; boil until slightly reduced, about 5 minutes. Strain and serve with beef. Dotdash Meredith Food Studios
    
11. Serve hot and enjoy! DOTDASH MEREDITH FOOD STUDIOS