Make sure that the fillet is completely trimmed of fat and sinew and cut it into 24 pieces about 2cm (¾in) thick and weighing 35g (1¼ oz) each.
Take a heavy frying-pan, large enough to hold the fillets side by side in one layer, and heat 25 g (1 oz) butter until foaming. Season the steaks lightly with salt and pepper and sear them for 2 minutes on each side. Ta