Put the flour in a working surface add butter and start working it.
Make sure all the flour is incorporated with the butter.

Add the water and assemble it as a dough ( do not knead ).
Put the dough aside to rest for 30 mins.

In a freezing bag put the chicken salt pepper and turmeric or other spices of your choice and some vinegar , shake it well and let it sit in the fridge.

After 30 mins put the dough in a working surface and put it in a pie pan cook for 25 mins on 175°C

In a pan add some oil and let the chicken cook.
Add the mushrooms and stir fry.
Remove it once its done.

Get the pie out of the oven add a layer of mushroom and chicken mixture.
Beat the eggs with the milk and add it on top spread the grated cheese on top.
And put in the oven for about 30-40 minutes.