Groh Eggs are loot obtained from Draken nests. They are an infinite resource and will respawn every day. When eaten they restore 15 hunger points. Groh Eggs are used in the quest Take An Egg Of Groh To The Witch. Groh Eggs can be roasted over any fire.
Funnily enough, while the eggs are called "Groh's Egg", the birds around them are called Drakens. Groh are large ice golems.