Read all the notes, still could not figure out what I needed to pick up to cook these since I did not know the recipe. Checked wowhead and here for ingredients but no luck. Looked in bag for recipe, and not attached to quest. Finally figured it out and thought I would put it here since no one else had mentioned.
When you pick up this quest, the recipe is automatically added to your list of known recipes. You will need to go and look at it to see that you need to collect ten worm meat to cook the ten desserts. I already has 17 of them in my bag !
I wandered around looking for the recipe based on another quest that deals with this recipe that she apparently no longer gives out. Never thought of looking in my recipes. Hope this helps someone.