Remove the beef from the fridge at least 30 mins before you are ready to cook it. Heat oven to 220C/200C fan/gas 7. Put the meat on a baking-parchment-lined baking tray and roast for 30-40 mins, depending on how well done you like it. (To test how done the beef is, insert a digital thermometer into the centre – it should read 50C for rare, 55C for medium rare and 60C for medium.) Leave to rest for 10-15 mins, then carefully slice with a very sharp knife and serve with the wine sauce. Scatter with extra thyme, if you like.