The Collaborative International Dictionary of English v.0.48:

Pastry \Pas"try\, n.; pl. Pastries.
   1. The place where pastry is made. [Obs.] --Shak.
      [1913 Webster]

   2. Articles of food made of paste, or having a crust made of
      paste, as pies, tarts, etc.
      [1913 Webster]

   Pastry cook, one whose occupation is to make pastry; as,
      the pastry cook of a hotel.
      [1913 Webster]

WordNet (r) 3.0 (2006):

pastry cook
    n 1: a chef who specializes in pastry