Step 1 / 10
Mix the yeast, warm milk, 1 tablespoon of sugar, and 4 tablespoons of flour (from the total amount). Leave for 20 minutes.
Step 2 / 10
Add 2 eggs, oil, the remaining sugar, and salt. Mix.
Step 3 / 10
Gradually add the flour, kneading well. The dough should be soft and not stick to your hands.
Step 4 / 10
Leave the dough to rise for 2–3 hours.
Step 5 / 10
For the filling, boil the potatoes until tender. Finely chop the onion and sauté until golden.
Step 6 / 10
Drain the potatoes and mash them. Add the sautéed onion, salt, and pepper to taste.
Step 7 / 10
Take a piece of dough (50–60 g), roll it into a circle. Place 2 heaping tablespoons of filling in the center. Pinch the edges well and shape into a pretty oval.
Step 8 / 10
Place the pyrizhky seam side down on a baking sheet.
Step 9 / 10
Beat one egg and brush the pyrizhky.
Step 10 / 10
Preheat the oven to 200°C (390°F). Bake the pyrizhky for 20 minutes.