1 cup (220 grams) firmly packed light brown sugar⅔ cup (150 grams) unsalted butter, melted⅔ cup (162 grams) canned pumpkin1 large egg (50 grams), room temperature1 teaspoon (4 grams) vanilla extract2¼ cups (281 grams) all-purpose flour2 teaspoons (4 grams) pumpkin pie spice1½ teaspoons (3 grams) ground cinnamon1 teaspoon (5 grams) baking soda1 teaspoon (3 grams) kosher salt¾ teaspoon (1 gram) instant espresso powderEspresso Frosting (recipe follows)Garnish: pumpkin pie spice
Preheat oven to 350°F (180°C). Line 2 to 3 baking sheets with parchment paper.
In a large bowl, whisk together brown sugar, melted butter, pumpkin, egg, and vanilla.
In a medium bowl, whisk together flour, pie spice, cinnamon, baking soda, salt, and espresso powder. Gradually add flour mixture to sugar mixture, stirring just until combined. Using a 3-tablespoon spring-loaded scoop, scoop dough into mounds (about 50 grams each), and place 2 inches apart on prepared pans.
Bake, one batch at a time, for 7 minutes, and rotate pan. Place a 3½- to 4-inch round cutter around hot cookies, one at a time, and gently move cutter in a circular motion while contacting edges of cookie until desired shape is reached. Bake until edges are set and tops are just set, 3 to 5 minutes more. Remove from pan, and let cool completely on wire racks.
Using a small offset spatula, spread Espresso Frosting on top of cooled cookies (about 18 grams each). (See PRO TIP.) Garnish with pie spice, if desired. Refrigerate in an airtight container for up to 2 days.
PRO TIP
For more-rounded, billowy frosting edges, spoon frosting into a pastry bag, and cut a ½-inch opening in tip. Pipe frosting in mounds on top of each cookie, using a scale for accuracy. Using a small offset spatula, spread and swoop frosting as desired.