Graham crackers are a sweet American cracker made from unbleached, whole wheat graham flour. The cereal was manufactured from a dough of Graham flour rolled into sheets and baked. Granula, however, consisted primarily of bran-rich graham flour made into nugget shapes. Granula was composed of Graham flour and was similar to an oversized form of Grape-Nuts. Graham flour is a type of coarse-ground whole wheat flour named after Sylvester Graham.