Pastei de nata @ Lisboa near Portobello Road, London
Again this is no secret but I took some friends on a hunt for the Pastei de nata @ Lisboa last weekend
Funnily enough we missed it (don't ask) and ended up at Oporto - we ordered 12, piled on the cinamon and had a ball. The tarts were super fresh, really tasty with a fantastically constructed base. Usually they crumble under the weight of the custard but Oporto's version somehow held firm while also having more flavour and subtlety that most.
Plus this is a great part of the market. There are a few food stalls by the side of the road that I am going to have to try.