Preheat oven to 350°F. Grease an 8 x 8-inch baking pan.
Whisk together flour, cinnamon, cloves, nutmeg, salt, baking powder, and baking soda in a medium bowl. Set aside.
In a large bowl, cream the butter and sugars together until combined and creamy. Gradually beat in the vegetable oil.
Add the eggs, one at a time, beating well after each addition, and scraping down the sides and bottom of the bowl as needed.
Stir the buttermilk and vanilla extract together. Add the flour mixture to the wet ingredients in three additions, alternating with the buttermilk mixture. Mix just until combined.
Pour the batter into the prepared pan and bake for 40 minutes, or until a toothpick inserted in the center comes out clean.
Let the cake cool completely on a wire rack before serving or frosting.
Notes
Enjoy this delicious spice cake with your favorite frosting!