Dice butter. Knead flour, butter, 2 eggs, 75 ml cold water and 1 teaspoon of salt to a smooth dough. Cover the dough and chill for about 1 hour. Peel onions and cut into slices. Clean, wash and chop the spring onions.
Heat the oil in a large pan, fry the diced bacon in it and take it out. Fry the onion slices in the bacon fat for about 5 minutes. Add spring onions and fry briefly. Mix sour cream, sour cream and 4 eggs. Season with salt, pepper and nutmeg. Roll out the dough on a floured work surface to a rectangle (34 x 41 cm). Place the dough on a greased baking tray (32 x 39 cm) and press the rim up a little. Spread onions and bacon on top. Pour egg milk over it.
Season with salt, pepper and nutmeg. Roll out the dough on a floured work surface to a rectangle (34 x 41 cm). Place the dough on a greased baking tray (32 x 39 cm) and press the rim up a little. Spread onions and bacon on top. Pour egg milk over it. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for about 30 minutes
Waiting time approx. 30 minutes