01 -
Heat the milk to 120-130°F (49-54°C). Pour into a large mixing bowl, whisk in sugar, then sprinkle yeast over top. Allow to proof for 5 minutes until foamy. Add egg, cooled melted butter, and salt, whisking until well combined.
02 -
Gradually add flour, whisking initially then switching to a spatula. When a dough ball forms, transfer to a floured work surface. Continue adding flour until dough is soft but not sticky. Knead for 4-6 minutes until smooth and elastic.
03 -
Place kneaded dough in mixing bowl, cover with a clean towel. Set in a warm area until doubled in size, approximately 1 to 1½ hours.
04 -
Place eggs in a pot of cold water. Bring to a boil, season with salt, and cook for 10 minutes. Remove from heat, drain, and transfer eggs to ice water to cool quickly. Peel once cooled.
05 -
Dice the cooled eggs and place in a large mixing bowl. Add mayonnaise, raw egg, mozzarella, and farmer's cheese. Incorporate dill, parsley, green onions, salt, pepper, garlic powder, and onion powder. Mix thoroughly to create a uniform mixture.
06 -
Punch down proofed dough and transfer to a floured surface. Divide into 12-16 pieces (smaller yield for 16 pieces). Cover with a towel to prevent drying. Using a floured rolling pin, roll each piece into a 6-inch circle (4-inch for smaller piroshki). Place 1/3 to 1/2 cup filling in the center.
07 -
Bring 4 corners of dough together at the top, then pinch seams together ensuring no filling touches the seams. Turn piroshki over, pat gently to form squares, and place on a flour-dusted baking sheet.
08 -
Allow piroshki to proof for 30 minutes until fluffy. Heat 1/2-inch canola oil in a deep pan to 275-300°F (135-149°C). Fry seam-side down first until golden brown, then flip and fry the other side. Cook 2-3 piroshki at a time, avoiding overcrowding. Transfer to a wire rack lined with paper towels to drain excess oil.
09 -
Preheat oven to 350°F (177°C). Line baking sheets with parchment paper. Arrange piroshki seam-side up with space between them. Brush with beaten egg and optionally garnish with sesame seeds or fresh dill. Allow to proof for 30-45 minutes until fluffy, then bake for 28-35 minutes until golden brown.