Tie up the stalk end of your bunch of thyme, place the leafy end in a
pestle and mortar and give it a good bash. This will remove the tasty
leaves and leave you with what looks like a miniature broom. Put this
to one side. Add your garlic, anchovy fillet and lemon zest to the
mortar. Bash to a paste and stir in your olive oil.
Your fillet steaks should be about 2.5cm/1 inch thick. Wrap a piece of
bacon around each steak (this gives it a really good flavour) and
secure loosely with a piece of string. Peel the mushroom skins off,
which only takes a second and helps them absorb the marinade. Brush the
steaks and mushrooms with some of your flavoured thyme oil, keeping the
rest for the cooking.
Try to become instinctive about cooking basic things like steaks and to
understand heat, sizes and cuts of meat. Chefs test their meat by the
way it looks and the resistance it gives when squeezed. Preheat your
griddle pan or barbecue until really hot. I don't want to give you a
specific time to cook them, as your steaks may be thicker or thinner
than the ones I'm using. Whether using fillets or sirloins, I cook mine
for roughly 3 or 4 minutes each side and let them rest for a couple of
minutes to give me a medium cooked steak – you can do them for a little
more or less time to your preference.
Season the meat on both sides and place on the griddle pan with your
mushrooms. Turn every minute, and brush each time with your thyme oil
brush. The mushrooms will be cooked after about 6 minutes and should be
soft to the touch – cooking them this way means they don't go all soggy
but they do have an intense meaty flavour. Once the beef is cooked to
your liking, remove the string, divide the steaks between 4 warmed
plates with your mushrooms, allow to rest for 2 minutes and put a big
dollop of salsa verde over the top.