Cafe Gram (CLOSED)

Along with A Happy Pancake and Flipper's, Osaka import Gram is one of the main culprits behind Tokyo's ongoing 'second pancake boom', which centres on cafés serving up super-fluffy, airy, melt-in-your-mouth fare made with ricotta, buttermilk or meringue. Gram caused quite a sensation when it opened in April 2016: long queues formed as the capital's sweets fiends went bonkers for the shop's made-to-order, uber-fluffy 'premium pancakes', which are only served to 20 diners during each time slot – at 11am, 3pm and 6pm every day. If you're eager to get a taste of the melt-in-your-mouth delicacy, best pick out a good book or charge up your phone before braving the line, as you're sure to be waiting for quite a while.