We don't have synonyms for bread stuff yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are breadstuff, real stuff and red stuff.
(n) :
Any of the ingredients for making bread, especially as commodities in trade and especially the principal ones, namely, flour and meal or the grain with which to mill it (such as wheat, oats, rye, or any other cereal grain).
(n) :
Any of the ingredients for making bread, especially as commodities in trade and especially the principal ones, namely, flour and meal or the grain with which to mill it (such as wheat, oats, rye, or any other cereal grain).