Does anyone know what this is!?

[KarkatLuv]

I found this video and was wondering if anyone knew what it is called...
http://www.youtube.com/watch?v=J1ltW_XJ6mk&feature=related

I really wanna try it so i was wondering if anyone knew what it was

[Suicune]

It looks like Agar-Agar which is a plant based gelatin-like food.

[DrWho]

Yup its agar agar