Pastry crust can be prepared in two ways, by hand or using a mixer.
In both cases, cut the butter into small pieces and knead it with the flour, salt and cold water.
Continue to knead until you obtain a homogeneous dough, form a ball, isolate it in the film and let it rest in the fridge for about 1 hour.
!!! Advice!!! To be able to roll out the brisée dough more easily, put it between two sheets of parchment paper and roll it out with a rolling pin, so it will be easier to flatten it and move it to place it in the pan, then remove the top layer of parchment paper and stuff it.
For the filling:
To prepare the mixture that we will use for the filling, cut the onions and bacon into cubes and chop them with a little oil, let them cool.
With the help of a hand blender, mix the eggs, milk and cream with salt, nutmeg and pepper.
Fill the base of the pan on the brisée pasta with onions and bacon, cheese cubes and finally add the mixture with eggs.