The recipe, of course, is not according to GOST, but this is only because the recipe is simplified. In relation to the fuss with the correct recipe, this one, without losing the taste, will be an excellent reduction of time by an hour or two. The bun became widespread during the Soviet Union, but is still popular throughout Russia. And it is named after the city where it came from - Sverdlovsk at that time and Yekaterinburg today.
Step 1

Lay out the puff pastry, put a small amount of butter on it and sprinkle with sugar.
Step 2

Cover with a second layer of dough and roll out the resulting structure.
Step 3

Place a small amount of butter on top and sprinkle with sugar.
Step 4

Cover with another layer of dough and pinch the edges.
Step 5

Melt the remaining butter, brush it over the top of the dough and sprinkle with the remaining sugar.
Step 6

Place in the oven for 15-20 minutes until golden brown.