Peel and grate the potatoes. Fry the mince, grated potatoes and onions with spices.
Mix the yoghurt, milk, oil and eggs into a mixture.
Grease and flour a baking tray, lay out two layers of pastry sheets, spread half of the minced meat on top, and spread 2/5 of the yoghurt mixture on top. Spread a few pieces of the dough on top and put on a new layer of dough sheets. Spread the other half of the minced meat on top, then again 2/5 of the yoghurt mixture, spread some pieces of the dough again and put on a last layer of dough sheets, distribute the remaining yoghurt mixture over the Börek.
Tip: Sprinkle crumbled sheep cheese between the layers as desired.
Bake in the oven at 180 degrees for approx. 30 - 35 minutes until the surface is crispy brown.