Brocho before eating this: Borei Minei Mezonos
Brocho after eating the proper shiur of this:
If a proper shiur of Mezonos is eaten: Al Hamichya
Otherwise: Borei Nefashos
If one is Koveah Seduah on this item, Hamotzi Lechem Min Ha'aretz and Bentching are required.
Source: Halachos of Brochos (handbook - page 62)