"Ssam" refers to Korean dishes in which leafy vegetables, usually lettuce, are wrapped around meat. This is a recipe by the much celebrated chef David Chang, from his famous New York restaurant Momofuku. The marinade for the beef is a classic Korean marinade and infuses the meat with enough flavour that they can be eaten as is, without a sauce. The sauces are simple to make once you get your hands on the ingredients. Excluding the marinating time, this is really fast and easy to make.