Brocho before eating this: Borei Minei Mezonos
Brocho after eating the proper shiur of this depends on whether a proper shiur of crust is eaten. If a proper shiur of crust is eaten say Al Hamichya. Otherwise say Borei Nefashos
If one is Koveah Seduah on this item, Hamotzi Lechem Min Ha'aretz and Bentching are required.
Source: The Laws of B'rachos (page 373)