I only steam 1 egg at a time - takes me 7-12 mins.
Was looking for my liquid proportion - found it: 1/2c per egg (though one recipe I learned from used the egg shell as a measure and did 3 iirc egg shells worth of liquid per egg - I am not great at cracking eggs so that wouldn’t work for me as the shell size could be anything when I’m done )
There’s a way to cut the time in the microwave but I haven’t tried that enough to get my timing down.