In a large bowl, whisk together the granulated sugar, dark brown sugar, all-purpose flour, salt, baking soda, pumpkin spice, and nutmeg until fully combined.
Add your room temperature eggs, 100% pure canned pumpkin, vanilla extract, and vegetable oil directly into the dry mixture. Stir gently with a spoon or spatula just until combined. Do not overmix, or your donuts will turn out dense instead of fluffy!
* **Oven Donut Pan (Makes ~12 standard donuts):** Preheat your oven to 375°F and grease a standard 12-count donut pan (or two 6-count pans). Use your tablespoon-sized cookie scoop to pipe or spoon batter into the cavities, filling them almost to the top without overflowing the center holes.
* **Mini Electric Donut Maker (Makes ~24–30 mini donuts):** Plug in your mini electric donut maker and let it preheat. Lightly grease the plates. Use your tablespoon-sized cookie scoop to drop a small scoop of batter into each mini cavity, being careful not to overfill so the center holes stay open.
* **Oven Baking:** Bake on the middle rack at 375°F for **12 to 15 minutes**, or until a toothpick inserted into the center comes out clean and the tops spring back when gently pressed.
* **Mini Electric Maker:** Close the lid and bake for **2 to 4 minutes** per batch until golden and springy.
Let the donuts cool for a few minutes, brush them lightly with melted butter if desired, and toss them in your cinnamon-sugar mix. *(Note: If coated in cinnamon sugar, enjoy them the same day, as the natural moisture from the cake will eventually melt the sugar coating!)*