WA!COOKIES HK sells cookies from Taiwan at Langham Place K402, 4/F, on Argyle St in Mong Kok. It offers Earl Grey and chocolate cookies with a texture that crumbles and melts in the mouth. The shop was open daily from 10 a.m. to 10 p.m. and operated as a pop-up until January 31, 2023. The cookies are relatively expensive.