In a large bowl, combine the pumpkin puree, granulated sugar, brown sugar, vegetable oil, eggs, and vanilla extract. Mix until well blended.
Combine Wet and Dry Ingredients:
Gradually add the dry mixture to the wet ingredients, stirring until just combined.
Prepare the Cinnamon Sugar:
In a small bowl, mix together the granulated sugar and ground cinnamon for the topping.
Assemble the Bread:
