Visited Le Relais in Marylebone lane last week - interesting little walk if you go to Bond st station and walk all the way down the lane to the restaurant from Oxford Street. Arrived just before 12:00 and surprised to see a queue of a...dozen customers waiting to get in . So was shown to my table , all waitresses are dressed in black with white pinafore , the restaurant became full after about 40 minutes - There is only one dish on the menu , steak with the 'secret' sauce and frits . I asked for medium rare - they only do Blue ,Rare, Medium , or well done , I chose rare , the waitress told me , remember its French cooking so rare means rare !!! - a quaint touch is that they write what your steak is in the tablecloth . A green and walnut salad was served first , this could have been crisper but was really tasty - I had a couple of glasses of house red which went well. The steak arrived with frits in place and was indeed rare but hot and delicious . The waitress first takes your food to a serving station and actually gibes you about two thirds of your meal , then as your about to finish this she serves the balance ! . I really enjoyed this meal and the experience , ambience was good and service was great as was the food - Try it , but I dont think you can book ??More