You can make this dough either by hand or with a food processor.
In a medium bowl or in the food processor container whisk together the flour, brown sugar, salt and baking powder. Either cut in butter or pulse until mixture resembles coarse crumbs.
In a medium bowl beat together the egg, cold water and vinegar. Add to flour mixture and mix until almost combined. Transfer to a flat surface and gently knead into a ball. Wrap in plastic and chill for approximately 30-60 minutes before using. Enjoy!
Notes
If the pastry is too dry then add a bit more butter to bring it together.
How to store the Brown Sugar Pie Crust
Wrap the unbaked pie dough in plastic it can be kept in the fridge for about 2-3 days, be sure to bring it to room temperature before rolling. Or it can be frozen in a freezer safe bag or container for up to 3 months.