The 2 most famous styles of crab cooking in singapore are with a sweet spicy tomatoish chilli sauce, or with black pepper sauce. Chilli crabs are usually eaten along with fried mantous (buns), which are dipped in the luscious chilly sauce. Well prepared crabs go through a 2 step cooking process, boiled first then fried so that the meat doesn't stick to the shell. Recently, many popular styles of cooking have surfaced as well, like salted-egg crabs or crab bee hoon