Preserved eggs, also known as pi dan (皮蛋) or century eggs, are a unique and fascinating culinary creation with a history stretching back centuries in China. Their distinctive appearance—a dark, almost black shell encasing a creamy, translucent yolk and an earthy, gelatinous white—often inspires both curiosity and apprehension. But don't let the unusual look fool you; these eggs possess a complex flavor profile, a delightful balance of creamy, salty, and slightly sulfurous notes that make them a beloved ingredient in many Asian dishes. From humble street food to sophisticated restaurant fare, their versatility shines through.
The process of making preserved eggs might seem daunting at first, but with a little patience and the right ingredients, even a home cook can achieve this ancient culinary feat. This article will provide you with a comprehensive, step-by-step guide to making your own batch of pi dan, transforming ordinary eggs into a truly remarkable and memorable delicacy.
Tools Needed
- Container for preserving eggs
Ingredients
- Fresh duck eggs
- Wood ash
- Clay
- Salt
- Quicklime
- Rice husks
Step-by-Step Instructions
Step 1. Prepare the Eggs and Preserving Paste
- Gather fresh duck eggs. (Sometimes chicken or quail eggs can be used.)
- Prepare a paste using wood ash, clay, salt, quicklime, and rice husks.


Step 2. Coat and Store the Eggs
- Thoroughly coat each duck egg with the prepared paste, ensuring the entire surface is covered to lock out air.
- Place the coated eggs in a suitable container.
- Store the container in a cool, dark place for 3 to 5 weeks (or longer for a deeper flavor).



Step 3. Clean and Prepare for Serving
- After the preserving period, carefully clean the eggs.

Step 4. Serve and Enjoy
- Peel and serve. The egg white will be a dark, jelly-like consistency, and the yolk a creamy gray-green (or sometimes amber or golden).

Read more: Chinese Wonton Soup: Thousand-Li Fragrance Recipe
Tips
- The exact proportions of the paste ingredients aren't precisely defined and might vary based on tradition and preference. Experimenting might lead to different flavor profiles.
- Using a container that can seal tightly is essential to create the anaerobic environment that helps preserving process.
- Remember that this is an acquired taste, and the ammonia aroma is a characteristic of the process.
Nutrition
- N/A
FAQs
1. How long does it take to make century eggs?
The traditional method takes several weeks, depending on the recipe and temperature. Faster methods using commercially-available kits exist, taking anywhere from a few days to a couple of weeks.
2. What does a century egg taste like?
The flavor is unique and hard to describe, but is often described as creamy, salty, and slightly sulfurous with an earthy undertone. The yolk is rich and the white has a jelly-like texture.
3. Are century eggs safe to eat?
Yes, when made properly using fresh, high-quality eggs and following safe food handling practices. The process of preserving the eggs actually reduces the risk of some bacterial contamination.
Making your own century eggs is a rewarding experience, connecting you to a culinary tradition spanning centuries. The unique flavors and textures of homemade pi dan will undoubtedly impress your friends and family. So, gather your ingredients and embark on this fascinating culinary adventure!