Now that the night tube has arrived, more and more restaurants are extending their opening hours to cater to revellers with the munchies. Aside from the 24 hour restaurants we already know and love (Duck & Waffle and Polo Bar to name just two) there's this one: Hubbard & Bell in Holborn serving food till 5 am.
Part of the Soho House group, you'll find it in the lobby of the Hoxton Holborn Hotel. Dishes include oxtail and bone marrow on toast, porchetta with fried artichokes, and truffle fries.
