### Balut
Philippines — It might look surprising, but this warm duck egg is the ultimate protein-packed, late-night comfort food.

Balut is a fertilized, hard-boiled duck egg eaten straight from the shell. Inside, you'll find three distinct parts: a creamy yolk, a partially developed embryo with gentle, soft bones, and a rich, warm broth that tastes exactly like the best concentrated chicken soup.
How It's Made
Duck eggs with thick, uncracked shells are placed in warm, dark incubators called balutans—traditionally bamboo baskets packed with warm sand and rice husks. The eggs are carefully incubated for exactly 17 days to reach the perfect stage of development. Finally, they are hard-boiled for 30 minutes, which safely cooks the contents and creates the famous rich broth inside.
The Story
Although it is the ultimate Filipino street food today, balut was actually invented in ancient China—where it was known as maodan, or "feathered egg"—as a brilliant way to preserve food before refrigerators. Chinese traders brought the technique to the Philippines in the 16th century, and the riverside town of Pateros quickly became the world's balut capital thanks to its perfect environment for mallard ducks. During the harsh food scarcities of World War II, this inexpensive, incredibly nutritious snack became a vital survival food for the nation. Today, the echoing calls of nighttime street vendors (magbalut) remain a comforting, familiar soundtrack for night-shift workers and hungry city explorers alike.