Mix the dry ingredients in a large bowl.
Add coconut oil and knead to create a crumbly texture.
Add milk, starting with 3 tbsp and adding more as needed. Knead to create a soft, yet firm ball of dough.
Roll it out so it's 3-5 mm thick. See the instructions above to learn how to do it.
Then take the dough and place it to a greased pie tin. Adjust and remove the remaining dough.
In case you're using a non-bake filling for your pie, pre-bake the dough. Place a bit of parchment paper into the pie tin, ontop of pie crust. Weigh it down with ceramic balls or dried legumes and bake for 10 minutes at 180°C. Then remove the weighs and bake for another 5-7 minutes. Let it cool down before adding your non-bake filling.
If you're using a filling that bakes, then proceed without prebaking your pie crust. Add the filling and bake as the pie filling instructions say.