Fat Cow and their Donburi needs no introduction; a go-to spot when you ask anyone "Where's the best Gyudon in town?". Part of the set lunch menu, this comes complete with starters, the Don and dessert. The Don comes with charcoal-grilled Wagyu beef steak at your preferred doneness (we went for medium-rare) with egg, truffle shoyu sauce and yakiniku sauce. The beef was melt-in-your-mouth tender, and it was generous in portion with smoky flavour with a whiff of truffle, flanked with a runny egg that burst with a poke of the chopstick which can be mixed into the rice bowl. Rice was well-flavoured with sauce of a savoury flavour and light truffle aroma. Indeed one of the better dons I have had, and one that is definitely worth every single cent being paid and a must try for both Japanese Dons and steak lovers.