This wonderful mélange of taste-tempting but calorie-rich treats originated in Québec, in the region of the Bas-St-Laurent or Gaspésie (so I've been told), caught on in Montréal, and quickly spread from there to other parts of Québec, and even as far as Ottawa. Since then, it has spread across Canada, and is even available at fast-food chains such as Burger King.
(Also endorsed by the Swedish Chef.)