Butter four ramekins or line one springform (26 cm). Heat oven to 175 C/fan.
Knead butter, flour and salt together. Add water and vinegar and knead until you have a smooth dough.
Roll the dough to fit the ramekins or the springform. Bake in the middle of the oven for about 10-12 minutes.
Filling
Heat the oven to 200 C/fan.
Mix eggs and heavy cream together. Grate the cheese and mix with salt and pepper.
Pour the filling into the ramekins or springform. Bake in the middle of the oven for about 25 minutes or until golden.
Dust the chanterelle mushroom and fry them in a little bit of butter. Set aside. Fry the bacon until really crisp. Pat them dry and crumble them.
When the pies are ready, top them with chanterelle mushroom and bacon streusel.
Anteckning
If the pie dough is made with cold butter and water it becomes a little more firm. And easier to knead and work with. You can use softened butter and lukewarm water, but then you have to let the dough rest for 20 minutes in the fridge. When mixing heavy cream and eggs don' whip it. You need a smooth liquid not whipped cream.