head chef vs saucier

head chef

noun
  • The main chef in a restaurant, in charge of the kitchen and of the team of other chefs. 

saucier

noun
  • In a large professional kitchen, a cook responsible for preparing sauces and for sauteing foods on demand. 

  • sauce boat (a pitcher, dish, or, bowl, used to serve sauce) 

  • A bowl-shaped pan used for sauces and other cookery. 

  • sauce pan (a pan used to cook up a sauce) 

How often have the words head chef and saucier occurred in a corpus of books? (source: Google Ngram Viewer )