braise vs cook up

braise

verb
  • To cook in a small amount of liquid, in a covered pan, somewhere between steaming and boiling. 

noun
  • A sauce used for braising. 

  • A dish (usually meat) prepared by braising. 

  • Pagellus bogaraveo, syn. Pagellus centrodontus (sea bream) 

cook up

verb
  • To prepare (food or chemical substances) by cooking or heating. 

  • To manufacture a significant amount of illegal drugs (LSD, meth, etc.) 

  • To prepare a heroin dose by heating. 

  • To manufacture; to invent (something, often a deceit or falsehood). 

  • Used other than figuratively or idiomatically: see cook, up. 

How often have the words braise and cook up occurred in a corpus of books? (source: Google Ngram Viewer )