Beef fillet is considered the king of all the beef cuts. It is the most tender cut as it comes from the least worked part of the animal. As a consequence, fillet is expensive to buy, especially in portions. To make it more cost-effective, try buying a whole fillet and preparing it yourself – the meat will keep happily for a month in the freezer and the trimmings can be used to make a tasty sauce.
When buying beef, always buy the best quality possible. Grass-fed beef has superior flavour and is a more sustainable way of farming than cattle that has been fed solely on grain.