Step 1: Prepare Oven and Pans : Preheat oven to 350°F (175°C). Grease and flour a 9-inch round cake pan (or line with parchment paper).
Step 2: Mix Dry Ingredients : In a medium bowl, whisk together flour, baking soda, baking powder, salt, cinnamon, nutmeg, ginger, and cloves.
Step 3: Mix Wet Ingredients : In a large bowl, whisk together sugar, brown sugar, oil, eggs, pumpkin puree, and vanilla until smooth.
Step 4: Combine Wet and Dry Ingredients : Gradually add dry ingredients to the wet mixture, alternating with buttermilk. Mix until just combined; do not overmix.
Step 5: Bake the Cake : Pour batter into prepared pan. Bake for 35–40 minutes, or until a toothpick inserted in the center comes out clean. Let the cake cool completely before frosting.
Step 6: Prepare Frosting : In a large bowl, beat cream cheese and butter until creamy. Add maple syrup and vanilla, then gradually mix in powdered sugar until smooth and spreadable.
Step 7: Frost the Cake : Spread frosting evenly over the cooled cake. Optional: garnish with chopped pecans, pumpkin seeds, or a light dusting of cinnamon.