Place the dry ingredients, flour, icing sugar and pinch of salt in a large bowl.
Add the cold butter pieces and mix with your fingertips until the mixture is sandy and without lumps.
Add the cold water and gather the dough quickly to form a homogeneous ball of dough, avoiding to knead it too much.
Wrap the dough with plastic wrap and place in the fridge for at least 20 minutes or immediately roll out between 2 sheets of parchment paper and let rest for 10 minutes in the freezer before using it to line your pie dish.
