Granula

Granula was the first manufactured breakfast cereal invented by James Caleb Jackson in 1863. Granula was an early version of Grape-Nuts, consisting of heavy grains of bran-rich Graham flour. The grains had to be soaked overnight before use.

The cereal was manufactured from a dough of Graham flour rolled into sheets and baked. The dried sheets were then broken into pieces, baked again, and broken into smaller pieces.