The flour and cold butter to grind into crumbs. Salt.

Pour into ice water (4-5 tbsp) and quickly shape the dough into a ball. Send for 20-30 minutes in the refrigerator. You can safely leave for the night!

For the filling: Onions (one large or two medium) cleaned and cut into half rings, bacon strips and mushrooms wash and cut into small slices. First fry the onions, add just a pinch or two of sugar — to caramelize. Then add the bacon just to fry it and mushrooms! Leave fry everything for 5-7 minutes. At the end add the cream, mix well, season with salt and pepper and remove from heat. To give fillings to give a little to cool.

Divide the dough into 3 equal parts. On a floured working surface of each piece of dough roll out to a thickness of 0.5 cm and Then gently transfer to a baking tray lined with baking paper.

In the center of each biscuit put the stuffing of bacon and mushrooms.

To form the biscuits and brush the edges of the dough with egg yolk. Bake in a preheated 180°C oven for 10 minutes.

Then get the biscuits out of the oven, each to drive an egg, salt and pepper to taste. And again send in the oven for 12-15 minutes.

The biscuits are ready to serve immediately to the table with a Cup of coffee or tea!