Beaumac dye and pro cure and salt, no measurements, just sprinkle it on let them sit overnight and stir them around every couple hours, they will juice up, reabsorb, air dry for a day or two and vacuum pack them after flash freezing them, look and fish great.
The salt will make them last vacuum packed for years. I am still fishing 2004-2005 eggs and they work just as good as new.