Preheat your oven to 350°F (175°C). Grease and flour a baking pan.
In a large mixing bowl, combine the pumpkin puree, sugar, and vegetable oil. Mix well.
Add the eggs one at a time, beating well after each addition.
In another bowl, whisk together the gluten-free flour, baking powder, baking soda, cinnamon, nutmeg, and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Pour the batter into the prepared baking pan and bake for 45 minutes, or until a toothpick inserted into the center comes out clean.
While the cake is baking, prepare the cream cheese frosting. In a mixing bowl, beat the softened cream cheese and butter until smooth.
Gradually add the powdered sugar and vanilla extract, beating until the frosting is smooth and creamy.
Once the cake has cooled, spread the cream cheese frosting evenly over the top.
Slice and serve. Enjoy!