the way you would do this to ensure that it did not ruin it is right as your are finishing cooking your eggs, pull them off the stove... set the pan down and drop your powder in... do NOT put back on the stove... mix with a spatula and immediately scoop your eggs off your pan and onto your plate... that way, you have not cooked it and although its warm, it will not be ruined and it will still mix properly with your eggs and ooze out when you eat it... take the eggs off a bit earlier than you normally would as well...