Start kneading the dough. Make a small hole in the flour and pour in water. Knead a soft dough. Continue kneading for 5-10 minutes. It should stop sticking to your hands. Cover with a napkin and leave for 15 minutes.
Prepare the puff pastry. Divide the dough into 2 parts. Knead each part again and leave it under a napkin for 5-10 minutes. Then roll out one part of the dough into a layer 2 mm thick. Using a brush, grease the dough with melted fat. Roll out the second piece to a thickness of 2 mm, put it on the previous layer, grease with fat. When the butter hardens on the second layer of dough, roll the dough into a tight roll and leave it for 10-15 minutes under a napkin.
Prepare the filling. Mix the chopped pieces of meat with the onion. Add salt, cumin and knead the mince thoroughly for 5-7 minutes.
Form the samsa with lamb. Cut the roll into equal parts, flatten each cut piece of dough. Then put the filling on it (1 tbsp). Wrap the dough into a triangle. Connect with your fingers, starting from the edge and gathering to the center.
Bake the samsa. Line a baking tray with baking paper and place the prepared samsa with lamb seam down. Beat the egg with a pinch of salt, grease the samsa, sprinkle with sesame seeds and put in a preheated oven. Bake for 30 minutes at 200 degrees. Place the finished samsa on a wire rack so that the bottom of the pastry does not get soft.