Mix bread flour with sugar, salt, and yeast.
Add milk and room temperature butter, then knead into dough.
Let the dough rise for the first fermentation.
Divide the dough, shape into balls, and let them rest for intermediate fermentation.
Roll the dough into long pieces, place butter inside, and roll them up.
Shape the rolls, then top with salt and butter.
After the second fermentation, bake in a preheated oven at 180°C.