This is a cookbook with a ghostbusters filter, rather than a ghostbusters cookbook. As the acknowledgements point out, there's a plethora of marshmallow recipes because - and I say this as someone for whom Ghostbusters is my all time favorite film, and as someone who has spent entirely too much time and money cosplaying as a Ghostbuster - the franchise doesn't need a cookbook per se. 50 recipes, and maybe 10% can have a direct link to the Franchise, rather than forcing a homophone down our throats.
Also, no Jello. What a missed opportunity - "there's always room for Jello."
That being said, as one would think, Erik Burnham totally captures the voice of the characters; so, it's a fun 30 minute read of the characters going on about their culinary preferences.