Eat This · Bangkok

Boat noodles (kuay teow reua)

A strongly flavoured noodle soup made with pork or beef, dark soy and spices, served in small bowls, so people usually order several. The broth gets its rich, thick texture from blood mixed with salt and spices, which is good to know if you're squeamish.

Sources: en.wikipedia.org

As featured in The Thai Brief #2. Check hours and prices with the venue or the official source before you go.