Banitsa with Spinach

Ingredients

 * 1 kg flour
 * 1 kg spinach
 * 300 g white brined cheese
 * ¾ cupful of yoghurt
 * 200g butter
 * 1 spoonful sunflower oil
 * 1 spoonful vinegar
 * salt

Directions

 * 1) Cook the cleaned and finely cut spinach in some of the butter.
 * 2) After having cooled, stir in crumbled cheese and yoghurt.
 * 3) Knead a hard dough from the flour, oil, vinegar, salt and water.
 * 4) Roll into five sheets (1 kg of ready rolled pastry sheets may also be used).
 * 5) Line a baking dish with butter, place 1 sheet on the bottom and top with the spinach filling.
 * 6) Add a second sheet, filling and so on.
 * 7) Baste in a moderate oven.
 * 8) The same recipe may be used for making banitsa with leeks.