I've never tried it in my entire life but I couldn't face grilling meat in the tail end of this spell of hot weather. 1) A cheap Lidl fillet steak . A similar type would cost over £100 a kilo in RBKC, but we live on the wrong side of the tracks. 2) onion 3) garlic 4) capers 5) anchovy fillets 6) Tabasco 7) Worcestershire sauce 8) Salt & pepper 9) Egg yolk I just chopped everything up as finely as I could with a sharp knife, mixed in the tasty stuff, and put the mixture in the freezer for fifteen minutes before lobbing the egg yolk on top. It worked out well. EDIT: I forgot the teaspoon of olive oil that gives it that glistening nasty look.