The Collaborative International Dictionary of English v.0.48:

Cookery \Cook"er*y\ (k[oo^]k"[~e]r*[y^]), n.
   1. The art or process of preparing food for the table, by
      dressing, compounding, and the application of heat;
      cooking.
      [1913 Webster]

   2. A delicacy; a dainty. [Obs.] --R. North.
      [1913 Webster] Cookey

WordNet (r) 3.0 (2006):

cookery
    n 1: the act of preparing something (as food) by the application
         of heat; "cooking can be a great art"; "people are needed
         who have experience in cookery"; "he left the preparation
         of meals to his wife" [syn: cooking, cookery,
         preparation]

Moby Thesaurus II by Grady Ward, 1.0:

52 Moby Thesaurus words for "cookery":
   bakehouse, bakery, baking, barbecuing, basting, boiling, braising,
   brewing, broil, broiling, burner, caboose, caliduct, camboose,
   catering, cooker, cookhouse, cooking, cookroom, cuisine,
   culinary science, domestic science, element, frying, furnace,
   galley, gas jet, grilling, heater, heating duct, home economics,
   jet, kitchen, kitchenette, nutrition, pan-broiling, pilot light,
   poaching, roasting, sauteing, scullery, searing, shirring,
   simmering, steam pipe, steeping, stewing, stove, tewel, toasting,
   tuyere, warmer