Instead of your typical Char Siew, London Fat Duck stuffs their signature London Duck into a baked bun. The bun exudes a hint of buttery fragrance but I would prefer the crust to be a little thicker and if it could hold a little better to the bun itself without crumbling into a mess. Inside, the London Duck is marinated the same way as a Char Siew Bun, coated in a sweet and sticky sauce so it's hard to detect the "duck" part of things here; perhaps intended as there is no Char Siew bun in the menu here. Overall still a decent bun, but don't really expect it to be something too different from a baked Char Siew bun.