Measure ½ cup of cold water adding an ice cube or two before setting aside. Dice butter into ¼ inch cubes. In a large bowl whisk flour, sugar and salt. Rub in butter using tips of fingers or a pastry blender. If you are using your fingers work quickly, the heat from your hands can soften the butter. Mix until crumbly with pea size pieces.
Stirring with a fork sprinkle 4 tablespoons of the ice-cold water, gradually adding 1 to 2 more until the mixture comes together. Always start with less water as the amount needed may vary.
Once most of the pastry has come together tip it out onto your counter and quickly knead until the flour is fully incorporated. Be careful not to over work as this will result in a tough pastry.
Flatten into a disk, wrap in plastic wrap and chill the pastry for 30 minutes to an hour.
On your floured surface roll out your pastry 14 inches in diameter. When rolling out your pastry start in the center of the dough working your way out. Rotate as you roll to keep it from sticking.
Using cookie cutters you can cut out any shape you like, squares, circles, or maybe even pumpkins. Place them on a baking sheet lined with parchment paper. Work quickly, you don't want the pastry to warm up. Sometimes we place the cookie sheet in the fridge to make sure the pastry is nice and cold before going into the oven.
Before placing them in the oven brush the pastry with an egg wash, milk or cream and then sprinkle with the cinnamon sugar. As mentioned above we like to make extra cinnamon sugar. Combine 1 tablespoon of cinnamon to 4 tablespoons of granulated sugar. Store the remainder in an air tight container.
Bake for 15-25 mins in a 350°F oven. Time may vary depending on the size.