Wildly popular on the streets of Bangkok, despite their reputation for causing the runs, are the shellfish hoy kraeng, also known as blood cockles.
As Bangkok Glutton explains, the red brown colored liquid that comes out after the cockles are cooked is reminiscent of blood, hence their name!
It’s not a Thai dish recommended for the weaker stomaches, but if you’re looking to jump right in to the heart of Bangkok street food, order up plate of hoy kraeng.