Take a large glass bowl and combine walnuts, flour, granulated sugar, and salt in it. Ypu can use the pastry blender to cut it until the mixture resembles the coarse crumbs. Now, add a one-fourth cup of ice-cold water until pastry dough is formed. Wrap the dough in a plastic wrap and refrigerate it overnight or for at least 30 minutes.

Roll the dough into two thin sheets and line one of them in the 9-inch pie plate and cut the other sheet into thin strips. Line these over the rim of the pan. Moisten the rim of the crust with water and refrigerate it for about 30 minutes.

Take a large bowl and whisk in brown sugar, nutmeg, ginger, cinnamon, salt, and cloves. Now, add milk, eggs, and pumpkin to the bowl. Whisk again for about a minute to combine all flavors. Place the pie crust on the baking pan and transfer the pumpkin mixture into the pie crust.

Bake this pie in the preheated oven (425 F) for about 10 minutes. Then, reduce the temperature of oven to 350 F and bake for further 35 minutes. Remove from the oven and keep it aside to cool completely.