I found this interesting idea in the book Thai Food by David Thompson. The author suggests steaming for 10 minutes for a slightly soft yolk, but as I desired a firmer yolk steamed for 12 minutes and let them cool at room temperature for a while. David is right that they are more tender than a boiled egg, not a huge difference but these are just that subtly bit better than a boiled egg. Well worth a try for anything where you would otherwise use a boiled egg.
- Prepare a steamer over relatively high heat so you are getting plenty of steam.
- If eggs have been refrigerated leave them out a while until they reach room temperature.
- Steam eggs for 12 minutes.
- Allow to cool. I left at room temperature for 15 minutes or so and run under a little cold water just before cracking / peeling.