The Ultimate Beef Wellington Recipe

Ingredients

2 tablespoons olive oil

2 pounds beef tenderloin, trimmed and tied

Salt and freshly ground black pepper

1/4 cup butter

1 large shallot, minced

8 ounces cremini mushrooms, finely chopped

2 cloves garlic, minced

1 teaspoon fresh thyme leaves, chopped

2 tablespoons brandy or cognac

2 tablespoons all-purpose flour

1/2 cup beef broth or stock

2 tablespoons Worcestershire sauce

1 sheet frozen puff pastry, thawed according to package instructions

1 egg yolk beaten with 1 tablespoon water