Ninja Dave's Cookies (or simply Ninja Dave's) is a cookie shop run and owned by the former Ninja, Dave.
So far we have only seen Dave working.
- As soon as it opened it became quite successful and popular.
- It appears Dave uses not only traditional recipes, but also specialized ones so people such as Dan (whom is lactose intolerant, and therefore cannot consume anything containing butter and/or normal milk) can enjoy his cookies, too.
- Dan has stated that Dave's cookies taste "Just as good as the ones with butter."
- The shop appears to be open 24 hrs. As it was open at 2 in the morning in The Monster Under the Bed.