Preheat your oven to 350°F (175°C) and grease two 9x5-inch loaf pans with oil or butter, coating with 1 tablespoon of granulated sugar.

In a large mixing bowl, whisk together pumpkin puree, eggs, and mild oil until smooth. Add granulated sugar and dark brown sugar, blending until silky and creamy.

In another bowl, mix together flour, baking soda, baking powder, fine salt, and pumpkin pie spice. Stir thoroughly.

Gradually add the dry mixture to the wet ingredients, stirring gently until just combined.

Pour the batter into the loaf pans, filling them 2/3 full, and sprinkle remaining granulated sugar on top.

Bake for 60-65 minutes or until a toothpick comes out with a few moist crumbs. The loaves will turn golden brown.

Let the loaves cool in the pans for 10 minutes, then transfer to a wire rack to cool completely.