Board Thread:Morrowind/@comment-24.230.118.85-20131019193956/@comment-24081142-20131022155355

Click on the Mortar and Pestle in your inventory. Then, while it is 'stuck' to your pointer, click on the paper doll of your character.

If you have lots of ingredients and don't have specific recipes in mind, you may be there a while, the alchemy system is not as streamlined and convenient as Oblivion or Skyrim.