Set your oven temperature to 350°F and grease a Bundt pan (size: 10 to 12 cups).
Whisk baking soda, flour, cinnamon, salt, cloves, ginger, allspice, and nutmeg in a big bowl. Set that aside.
In another bowl, mix oil, eggs, pumpkin, granulated sugar, brown sugar, and vanilla extract until combined. Pour this mixture into the bowl of dry ingredients (Step 2) and mix with your whisk or mixer. Optional: toss in some nuts or chocolate chips.
Scoop or pour the cake batter into your Bundt pan. Bake for 55 to 70 minutes (give or take since the cake is heavy). To check, stick a toothpick into the middle; once you pull it out, there should be no moist crumbs on it.
Let it chill in the Bundt pan on a wire rack (out of the oven) for about 2 hours. Then, carefully flip it onto a cake stand, serving plate, or a second wire rack.
Let it cool completely before adding icing or toppings (e.g., maple spicing with sprinkles of pumpkin pie spice blend). Enjoy!