Pie dough is an essential part of baking, whether you're baking sweet or savoury a basic dough is important to have. This is my go-to recipe which never fails me. Always light and flaky. 

What you need:
2 1/2 cups all-purpose flour, plus extra for dusting
1 cup salted butter, very-cold, cut into 1/2 inch slices (note: you can use unsalted butter and add 1/4 teaspoon of salt with your dry ingredients)
1 teaspoon sugar (optional, I don't add any) 
6 to 8 Tbsp ice water (put bottle of water in the freezer until very cold but not frozen)

What to do:
Put the flour, salt, and sugar (if using), in a food processor. Hit pulse a few times to aerate the flour. 

Add the butter one slice at a time hitting the pulse setting with each new addition, until the butter is done and you have a coarse crumb texture. Do not overwork the dough otherwise it will get tough. 

Transfer to bowl and add water one table spoon at a time using a fork to "fluff" it up. Again do not overwork the dough. Once you have a mound that is dough like, cover it with plastic and put it in the fridge for a minimum of one hour.

That's it, now go ahead an make any wonderful creation you like, from apple pie to chicken pot pie to whatever you can think of.