There's a Southeast Asian slant to this Leather Lane burger spot, with its signature sandwich comprising chicken breast marinated in a Thai sauce that was passed down from the owners' father, who set up the original Sintong back in the early '90s. Today the whole shebang been relaunched by his sons and daughters.
The chicken in that signature burger is cooked over charcoal, sliced and served simply with mayo, tomato, lettuce and red onions. Other options include a cheeseburger with beef bone marrow added to the patty, a chilli burger (same patty) served with a homemade chilli sauce, and a veggie burger made with grilled potato and served with halloumi, grilled courgettes, ketchup, mayo, lettuce, red onion and tomato.