Badiani Gelato Mayfair is an ice cream shop selling Italian-style gelato inside Mercato Mayfair in London's Mayfair district. It offers pistachio, dark chocolate, and berry cheesecake gelato, along with pistachio iced latte and strawberry or blueberry crepes topped with Nutella. The shop sits in a market housed in a converted old church, and stained-glass windows remain in place. Staff sometimes do not attend to customers right away or speak rudely.