From the 14th century on, traveling armies had to be fed; cooks were selected from among the ranks. During peacetime, rulers set up tournaments to keep their warriors prepared for future battles; the military cooks followed knights to castles and ultimately became the cooks to kings and nobility, orchestrating huge and complicated meals and feasts for vast entourages.
Trade guilds soon developed; these were carefully controlled monopolies for cooks that ensured the membership steady employment. Expensive and exclusive, these guilds adopted uniforms, rigid hierarchies, and systems of exhaustive apprenticeship. Until after the French Revolution and the subsequent rise of restaurants, this caste of cooks continued to work exclusively for the aristocracy.
The classic double-breasted white jacket is vestigial -- it originated when chefs were servants of the king and presumably might be called upon to serve in battle as well as in noble households. By the 1820s, chefs were wearing uniforms purportedly based on those worn by soldiers in the Turkish army. White eventually became the standard to emphasize cleanliness and good sanitation.
There are numerous unsubstantiated legends about the origins of the chef's tall white toque; one version attributes it to the tubular black hats worn by Greek Orthodox priests. Antonin Carême, the 18th-century chef to Tallyrand and various Rothschilds, is also credited with bringing the toque into the kitchen. Supposedly inspired by a woman's hat, he inserted a snappy cardboard tube into his cap, and the style caught on. Traditional stiff, pleated toques are about 8 inches tall, but executive chefs wear them up to 12 inches. The