How to Make Powdered Eggs
Here’s a video on how to make powdered eggs using a flour mill. The eggs are cooked in a nonstick pan, dehydrated and then run through a flour mill a couple times until powdered.
Teflon is nasty stuff, so I hope she uses a ceramic coated non-stick pan — and probably things would be more efficient in a dehydrator (store bought or rigged).
Apparently eggs prepared this way can be rehydrated to make scrambled eggs and other egg dishes or added without rehydrating to baked goods recipes and can last 5-10 years if stored in an airtight container.
The Real Know How 