I'm trying to complete this quest. I have the recipe, the Beans of Vigor and the Fruit of the Harvest Son. I've gone back to the goblin camp to have our potion maker mix it up but she says I don't have all the ingredients. Did I miss a 3rd ingredient? Since the quest doesn't list the ingredients needed, not sure if I missed something. I haven't found any other potion maker say she is the only one to make it?