If you somehow receive this quest before Part 1 of Giovanni's Ready to Rumble quest, you might want to hold off until you have them both in hand, so that you can have the Oatbars count toward both quests simultaneously.
After you successfully complete this quest, Magnus will give you a two-parter called The Lure of Obsidian.
Gather 3 Honey
Pick 5 Hot Peppers
Make 8 new Sweet & Hot Oatbars