Yes, hard boil them. Peel the shells off, Separate the white from the yolks. Mash the whites real good with a potato masher otherwise they come out like stones. Dehydrate them, and lay a gallon Ziploc baggie or something on your dehydrator shelf underneath so they don’t fall through the grid. When they are finished dehydrating put the whites in your blender and blend it to powder. Now you have protein powder. Keep the white and the yellows separate. Yellow part can be added to different foods to, like in baking to make things moist.