food.com
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.