Poutine (Quebec, Canada): My vote for the most unsavory dish is a concoction they call 'Poutine' which is grease-impregnated French fries called Frites or Chip by the locals, soaked with fat-laden gravy topped by cheddar curd cheese which melts from the heat of the French fries and gravy ...
Cooking is an art. To truly understand what flavors best complement one another takes lots of experimentation. A chef must be brave enough to try new things and take risks. Even if a combination turns out to be repulsive, at least the artist learned something. Plus, you know what they say...