Bulbashka z syrom (potato cheese buns)

Instructions

1. Peel the potatoes, boil them in salted water until tender, then mash them and let cool slightly.
2. In a large bowl, mix the lukewarm milk with the yeast, then add the mash, the egg, the butter and the salt.
3. Gradually work in the flour and knead for 8 minutes until you have a soft dough.
4. Cover and let the dough rise for 1 hour, until doubled in size.
5. Divide the dough into 8 balls, flatten them and place a piece of cheese in the centre before sealing.
6. Place the balls on a baking tray, let them rise for 20 minutes, then brush with beaten egg yolk mixed with milk.
7. Bake at 200 °C for 20 to 25 minutes, until the bulbashki are nicely golden.