Pre-heat your oven to 350 degrees.
In a large bowl, beat together the sugar, eggs, pumpkin, oil, and vanilla extract.
In the same large bowl, sprinkle the flour over the pumpkin mixture, then sprinkle the top of the flour with the cinnamon, pumpkin spice, baking soda, and salt.
Mix everything together until just combined.
Pour into a greased 9x13 pan.