A balut (Trứng vịt lộn or Hột vịt lộn in Vietnamese, Pong tea khon in Cambodian) is a fertilized duck egg with a nearly-developed embryo inside that is boiled and eaten in the shell.
A partially shelled egg
A 15 day old balut egg cooked for 15 minutes, floating in a mixture of hot sauce and patis, ready to be eaten
