concoct vs lay the groundwork

concoct

verb
  • To contrive something using skill or ingenuity. 

  • To prepare something by mixing various ingredients, especially to prepare food for cooking. 

lay the groundwork

verb
  • To create a foundation; to provide the basics or fundamentals. 

How often have the words concoct and lay the groundwork occurred in a corpus of books? (source: Google Ngram Viewer )