Девять способов обмануть туриста в Праге.⁠⁠

Ну и кстати прочитайте ваш источник ещё раз, там же тоже прямо говорится, что трдельник возник из неоткуда и главное это маркетинговый успех....

Might the following perhaps be true?:

National Trdelník Day has been celebrated by Czechs on the first day of the full moon after the autumn harvest ever since the 14th century. It was then, in 1387, that Bohemian King Trd gallantly crossed the mighty river Elník to reach his beloved future bride Princess Brambora. The legend is that he was carrying one bag of coal and another bag of flour. Using a great deal of ingenuity, he took the flour, mixed it with water, made rings from the dough and roasted these over a charcoal fire. He then placed these rings over his arms and used them as floatation devices to cross the river and reach his beloved princess.

Alas, the above tale is a complete invention from your humble reporter’s even more humble imagination. The real story of the Trdelník is of a common method of cooking used across all of Europe and beyond. The Hungarians, Slovaks, and even Turkic peoples of Asia have spun dough on an open flame. According to Trdelnik.com, the sweet treat was brought to Moravia in the 18th century by the Hungarian general József Gvadányi. But as another website, Trdelniky.net notes, there are a great many myths about the origins of this treat.

I spoke with Ladislav Provaan, head of the Gastronomy Museum, Prague to try to find some answers:

“Trdelník is primarily an incredible marketing success. It has appeared overnight. I really cannot remember seeing Trdelník at all when I was young – it didn’t exist. In the last few years, it has really skyrocketed. It is everywhere and tourists love it, but I feel bad about that because people aren’t really getting the full information on what this food is all about.”

Because presumably many are thinking: “Oh, look! An ‘Old Bohemian’ something or other, and maybe that is a traditional thing that Czechs are eating.” The history suggests otherwise. It is perhaps Hungarian, or Slovak, or Turkic?

“No, it goes way beck to Neolithic times. Trdelník ties very directly to the open fire. Prior to bread ovens, and prior to kitchen stoves or hot plates, there was no other way to cook dough other than to twist it on a stick of wood and rotate it over an open fire. In a practical sense, this made it accessible for people who were travelling, or people staying with their herds out in the countryside. So that is the charm of it. As far as it is known in Europe, it starts with ancient Greece and practically every nation from Sweden down to the south, east and west, people knew Trdelník. The only difference is that it had so many local names. The word ‘Trdelník’ is the only thing about this food, which is purely Czech. It is a very ancient word, and it essentially denotes the use of a wooden stick, mallet or spindle – when twisting yarn this word was used. So this is very nice word, which has many meanings in the Czech language. For example ‘trdlo’ is a gentle word for someone who is a little bit confused in a given situation.”

Вы хоть читаете, что я вам пишу? Нет никаких доказательств того, что трдельник готовился именно в таком своем виде и то что он был популярен. В фольклоре его нет - повторяю та "легенда" это просто рекламный вымысел. 

Понимаю как себя чувствовал Вавра, когда ему пытались доказать, что негры в средневековой Богемии были.