To make crust:
Pass the flour through a sifter into a large mixing bowl. Add the diced butter and cut the butter into the flour, using a pastry cutter until the dough resembles coarse meal. Add the vodka a little bit at a time, (you may not need all of it), incorporating it into the dough until you can squish all the dough together in one big ball. Using a kife or a dough slicer, cut the dough into two even parts, wrap each in cling film and let sit in the fridge for at least one hour or overnight.
When the dough has cooled, preheat the oven to 400*F and sprinkle your work surface lightly with flour. Roll out the dough, one ball at a time, and gently place in the bottom of a 9? pie tin (or glass, or enamel) and trim or scrunch the edges as desired. Bake for 15 minutes. If the sides of the pie crust have sunk during the baking time, gently press them back into place with the back of a spoon. Turn the oven down to 325*F. Let the crust cool slightly before adding the filling (about 5 or 10 minutes).
To make filling:
Whisk the eggs together with the heavy cream and the milk. Add the cheese, kale and bacon and combine. Pour the contents of the bowl into the pre-baked pie crust. Bake at 325*F for 35-40 minutes, or until the filling jiggles only slightly when removed.