Season the steaks with salt. Heat the oil in a frying pan large enough to fit both steaks, then add half the butter and once melted and foaming, add the garlic and thyme. Carefully put the steak in the pan and cook for 3 mins for rare, 4 mins for medium and 6 mins for well done, flip the steak and repeat. Once cooked, add a squeeze of lemon juice to the pan and spoon the lemony butter over the steak. Transfer the steaks to a warm plate and cover.

Pour off the fat from the pan, discard the garlic and thyme and wipe out with kitchen paper. Place the pan back on the heat, add half the remaining butter, and once melted, add the shallot and fry for 30 seconds, then add the wine and reduce to a glaze. Pour in the stock and bring up to the boil, then add the pastrami and chilli and warm through. Finally, stir in the parsley. Put the steaks on plates and spoon over the sauce, with the ketchup and chips on the side.

Remove the steaks from the fridge about 30 mins before you plan to cook, so they’re closer to room temperature. Pat the steaks dry with kitchen paper, and season with salt and pepper. Take a heavy-based frying pan that will comfortably fit both steaks, add the oil and heat over a high flame.

When the oil is shimmering, turn the heat down to medium-high and add the butter. Once it’s sizzling, carefully lay the steaks in the pan, tucking the garlic and herbs in at the sides.

With a pair of tongs, sear and turn the steaks every 30 secs to 1 min so they get a nice brown crust. As a rough guide, each steak will take 3 mins in total for rare, 4-5 mins in total for medium and 7-8 mins for well done. If you have a digital cooking thermometer, the middle of the steak should be 50C for rare, 60C for medium and 70C for well done.

Take the steaks out of the fridge 30 mins before cooking them. Pat them dry and season. Heat a non-stick heavy-based frying pan over a very high heat. Drizzle in the oil, then add the butter, garlic and steaks, nestling the herbs around them. With a pair of tongs, turn the steaks every 30 secs to 1 min so they get a nice brown crust. As a rough guide, each steak will take 3 mins in total for rare, 4-5 mins in total for medium and 7-8 mins for well done. If you have a digital cooking thermometer, the middle of the steak should be 50C for rare, 60C for medium and 70C for well done. If your steak has a thick layer of fat running down the side, hold the steak on its side with a pair of tongs and push the fat into the pan for 2 mins or until golden brown. Transfer the steak to a plate. Cover in foil and leave to rest for 5 mins before serving.