01 -
In a bread machine, combine yeast, sugar, salt, egg, oil, and warm water. Whisk thoroughly, then add flour. Close the lid and set to dough cycle (approximately 1 hour 30 minutes).
02 -
While dough is processing, combine chopped cabbage, grated carrot, sautéed onion, oil, tomato paste, salt, sugar, black pepper, and water in a large skillet. Cook over medium heat for about 20 minutes, stirring occasionally. Allow to cool to warm temperature.
03 -
Line a baking sheet with parchment paper and lightly oil the surface. Divide dough into 12 equal portions. Working with floured hands, flatten each piece into a round disc, add approximately ⅓ cup of cabbage filling to the center, then fold and pinch edges together firmly to seal.
04 -
Place each piroshki seam-side down on the prepared baking sheet. Continue until all piroshki are formed.
05 -
Whisk together egg and water in a small bowl. Brush formed piroshki with egg mixture, then let rise for 30 minutes in a warm place.
06 -
Preheat oven to 180°C (350°F). Brush piroshki again with remaining egg mixture. Bake for 20-25 minutes until golden brown.