Bro I never played undertale either, I NEVER EVEN GOT TO SEE UNDERTALE, I played ch 1-2 of deltarune, its just trial and error
Plus the challenge is a fun bonus, why do you put seasonings on food? For better taste, even if it isn't necessary its better than dry foods
Also just use the carrot from the shadow girl's room, I'm pretty sure that does something to the costume girl bc I got it and it hinted at that, but I got it after the fight so I never got to see.