bread and butter vs breadstuff

bread and butter

noun
  • Used other than figuratively or idiomatically: see bread, butter. 

  • That which is central or fundamental, as to one's business, survival, or income; a staple or cornerstone. 

intj
  • Said when two people walking together are temporarily separated by an obstacle in order to indicate that they belong together. 

breadstuff

noun
  • Bread or bread-like baked goods of any sort. 

  • Any of the ingredients for making bread, especially as commodities in trade and especially the principal ones, namely, flour/meal or the grain with which to mill it (such as wheat, oats, rye, or any other cereal grain). 

How often have the words bread and butter and breadstuff occurred in a corpus of books? (source: Google Ngram Viewer )