Preheat the oven to 350ºF (177ºC). Line a large baking sheet with parchment paper or a silicone baking mat. Set aside.
In a small bowl, combine the sugar and cinnamon. Stir together until thoroughly combined. Set aside.
¼ cup (50g) granulated sugar, 1 teaspoon ground cinnamon
Gather leftover pie crust scraps into a disc. Working on a floured surface, roll out dough to about ¼" thickness.
chilled1 homemade pie crust scraps2
Using a pastry brush, brush the dough with butter. Sprinkle cinnamon sugar evenly over pie crust, then flip the crust over and repeat butter and cinnamon sugar on the other side.
2 Tablespoons (28g) unsalted butter
Use a 2-3" circle cookie cutter (or any desired shape) to cut into rounds. Place cut circles on baking sheet. Gather and re-roll dough as needed. You may need less butter and cinnamon sugar coating as you rework the dough, so use as desired.
Bake the rounds for 8 minutes, flip them over, then bake for another 8 minutes. Remove from the oven and allow to cool completely on the baking sheet. Store cookies covered at room temperature up to 1 week.
Notes
Chilled dough: it is imperative you use chilled dough. Chill pie crust scraps in the refrigerator at least 30 minutes before use.
Pie crust: you may also use fresh pie crust that hasn't been cut at all yet. You are not limited to only leftover scraps for these cookies!
Nutrition Disclosure
All nutritional values are approximate and provided to the reader as a courtesy. Changing ingredients and/or quantities will alter the estimated nutritional calculations.