Cookie Preparation

• Line two baking sheets with parchment paper to prevent sticking.
• In a stand mixer, beat softened unsalted butter, dark brown sugar, and granulated sugar together until light and fluffy, about 3-4 minutes.
• Add the egg and vanilla extract, mixing until well combined.
• Whisk together the all-purpose flour, kosher salt, apple pie spice, ground cinnamon, baking soda, and cream of tartar in a separate bowl.
• Gradually add the dry ingredients to the butter mixture on low speed, mixing just until combined.
• Scoop about 1½ tablespoons of dough, roll it into balls, and coat each ball with turbinado sugar.
• Chill the dough in the refrigerator for 30-60 minutes.
• Preheat your oven to 350°F (180°C) and bake the cookies for 13-16 minutes, until golden around the edges and soft in the center.
• Cool on the pans for 20 minutes before transferring to wire racks.
• On half of the cookies, pipe a border of Apple Butter Buttercream, then fill with ample apple butter. Top with the remaining cookies to create delicious sandwiches.