Preheat oven to 375 degrees. Spray a 8 x 8 inch casserole dish with nonstick spray and set aside.
In a mixing bowl whisk together flour, cornmeal, baking powder, baking soda, salt, cinnamon, ginger, nutmeg, and cloves and set aside.
In a separate mixing bowl, mix together the sugar, oil, pumpkin, Greek yogurt, and eggs until well blended. Pour mixture into the flour mixture then fold with a rubber spatula just until combined.
Spread the batter in an even layer into the prepared baking dish. Bake until a toothpick inserted into the center comes out clean, about 25 - 30 minutes. Cool slightly on a wire rack then cut into squares. Serve with whipped honey butter.
For the Whipped Honey Butter
In a mixing bowl (or using a stand mixer) whip butter with an electric hand mixer until smooth and light in color Add in honey and cinnamon and mix on low speed until combined, then increase to high speed and whip until light and fluffy, about 2 - 3 minutes.