Preparation

• Set the oven rack to the middle position. Heat the oven to 350ºF (177ºC).
• Grease a 13 x 9-inch baking pan with cooking spray or vegetable oil. Add 1 tablespoon of flour to the pan, turn, and tap the pan to lightly coat the bottom and sides. Tap out any extra flour.
• In a medium bowl, whisk together 2 cups of sifted flour, pumpkin pie spice, baking powder, baking soda, and salt.
• In a large bowl, vigorously whisk together granulated sugar, brown sugar, eggs, and vegetable oil until thick and smooth, about 3 minutes. Add pumpkin puree and whisk until combined, about 15 seconds.
• Fold the flour mixture into the pumpkin mixture and stir until no flour streaks and just a few small lumps remain.
• Evenly spread the pumpkin cake batter into the prepared baking pan. Bake until a toothpick in the center comes out clean, about 30 to 33 minutes. Let cool completely on a wire rack for about 1 ½ to 2 hours.
• In a stand mixer, beat softened butter and powdered sugar on low speed until combined. Gradually increase to medium speed and beat until light and fluffy, about 1 to 1 ½ minutes.
• Add half of the softened cream cheese and beat until incorporated, then add the remainder and beat until smooth.
• Add maple syrup and vanilla extract. Beat until frosting is light and smooth, scraping the bowl as needed.
• Frost the cooled cake using a spatula. Optionally sprinkle with chopped nuts or other desired toppings.