Gluten Free Chocolate Pumpkin Cake is a moist, tender pumpkin cake flavored with cocoa powder and topped with chocolate cream cheese frosting. It's easy and sinfully delicious!
Pre-heat oven to 350 degrees and lightly spray a 9x13 pan with non-stick spray. If you plan on removing the cake from the pan before serving, line the pan with parchment paper leaving enough overhang to use as a sling to pull the cake out of the pan. Skip the parchment if you plan on cutting and serving directly from the pan.
In a medium bowl, whisk together the flour, xanthan gum (if using), sugar, cocoa powder, baking powder, baking soda, salt, and pumpkin pie spice. Mix, pressing out any clumps of cocoa powder, and then set aside.
In a large bowl, whisk together the eggs, pumpkin puree, oil, and vanilla extract until combined.
Add dry ingredients to the wet ingredients and stir to combine. Gently stir in the hot water until it's completely incorporated.
Pour batter into the prepared baking pan and bake at 350 degrees for 30-35 minutes or until a tester comes out clean and the cake springs back when poked. Mine takes the full 35 minutes.
Storebought Pumpkin Pie Spice is fine or use the Homemade Pumpkin Pie Spice from my cookbook, The Gluten-Free Quick Breads Cookbook (which is what I used).
This cake can be refrigerated if making ahead. Make sure it's covered tightly so it doesn't dry out and bring to room temperature before serving.
Leftover cake should be stored in the refrigerator. Cover it tightly and press a piece of wax paper or plastic wrap right up to the exposed part of the cut cake to prevent it from drying out.
This cake also freezes well. To freeze, slice into individual servings and freeze on a sheet pan. Once frozen, wrap individual slices in plastic wrap and aluminum foil and then store in a freezer bag. Unwrap and defrost at room temperature before serving.