Creating Gordon Ramsay Beef Stroganoff is straightforward when you follow these clear steps:

1. Prepare Ingredients: Begin by slicing the beef tenderloin into thin strips. Finely chop the onion and mince the garlic.
2. Cook Beef: In a large skillet, heat the olive oil over medium-high heat. Add the beef strips and season with salt and pepper. Sear until browned, about 3-4 minutes. Remove the beef from the skillet and set it aside.
3. Sauté Vegetables: In the same skillet, add the chopped onion and minced garlic. Sauté until the onion becomes translucent (about 2-3 minutes).
4. Add Mushrooms: Throw in the sliced mushrooms and cook for another 4-5 minutes, allowing them to release their moisture and become golden brown.
5. Incorporate Flour: Sprinkle the flour over the mushroom mixture and stir for about a minute to cook the flour slightly.
6. Create Sauce: Slowly pour in the beef broth while stirring continuously. Add the Worcestershire sauce and Dijon mustard, and bring to a simmer.
7. Add Sour Cream: Reduce the heat and stir in the sour cream until fully incorporated. If the sauce is too thick, you can add a little more broth to achieve the desired consistency.
8. Return Beef: Add the cooked beef back to the skillet, mixing well to coat it in the creamy sauce.
9. Season: Taste and adjust the seasoning with more salt and pepper as needed.
10. Serve: Remove from heat and garnish with fresh chopped parsley.

These steps will help you create a comforting and delicious dish that exudes Gordon Ramsay’s culinary expertise!