Tom yum or tom yam (Lao: ຕົ້ມຍຳ [tôm.ɲám]; Thai: ต้มยำ, [tôm.jām]) is a Lao and Thai, clear, spicy and sour soup.[1] Tom yum is widely served in neighbouring countries such as Cambodia, Brunei, Malaysia and Singapore, and has been popularised around the world.