Cake, huh? They'll have to prod her about it, cake is something they don't have a ton of experience in. Just one recipe, for Misty's last birthday... aww, now they're sad.

They shake their head a little at the last. "Aw, don't worry about it. It's something to do to keep me busy, and I like feeding people." Makes them feel useful. And their usefulness is still their main metric for self-esteem, honestly. Thanks is just embarrassing, like being thanked for completing a mission or singing along to the radio.