Preheat your oven to 350°F (175°C) and grease your cake pan.
In a large bowl, whisk together the flour, baking powder, baking soda, salt, and spices.
In another bowl, beat the granulated sugar, brown sugar, and oil until smooth.
Add the eggs one at a time, mixing well after each addition.
Stir in the buttermilk and vanilla extract until well combined.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
Pour the batter into the prepared cake pan and smooth the top.
Bake for 35-40 minutes, or until a toothpick inserted in the center comes out clean.
Allow the cake to cool in the pan for 10 minutes before transferring it to a wire rack.
Once cooled, frost with cream cheese frosting or serve plain.