How to Make It
With the back of a knife, make 6 equally spaced marks crosswise on the fillet to divide it into equal portions. With a sharp knife, cut 2/3 of the way through the meat at the markings.
In a small bowl, whisk together the soy sauce, curry powder, white pepper and honey.
Place the beef in a shallow roasting pan and pour the marinade over it. Rub the marinade into the meat on the outside and in the cuts. Cover with plastic wrap and refrigerate overnight.
About 1 hour before cooking, remove the meat from the refrigerator and let stand, basting frequently with the marinade as it returns to room temperature.
Preheat the oven to 500°. Rub the beef with the peanut oil and roast, basting with the marinade in the pan every 5 minutes, for 15, 20 or 25 minutes, depending on your preference for rare, medium or well-done meat. Add 2 tablespoons of water to the pan if the sauce begins to dry out.
To serve, cut the meat into thick slices and drizzle on a little sauce. Pass any extra sauce on the side.