Chapter 7:
After you give Sombria the mushrooms you can go North to the noodle shop. From the owner you'll get a bowl of noodles for the forest spirit. Go to the forest spirit, directly after the conversation offer him the bowl of noodles. Don't wait too long or you aren't able to give the bowl of noodles to the spirit. (or that might be a bug, but on my first play through I couldn't give it to him anymore after I left the screen)