Tom yum or tom yam is a type of hot and sour Thai soup, usually cooked with shrimp. Tom yum has its origin in Thailand. The words "tom yam" are derived from two Thai words. Tom refers to the boiling process, while yam means 'mixed'.
Make the Garlic Butter Sauce. Melt the butter in a large pan over medium heat. Add the chopped garlic and cook until fragrant. Pour the sweet chili sauce, oyster sauce, and chicken powder. Continue cooking over low heat. Add the crabs including the crab fat (butter). Toss until the crab is drenched in the sauce.
