In a small mixing bowl combine flour, baking powder, cinnamon, nutmeg, salt and cloves. Set aside. In a separate large mixing bowl whisk together eggs, buttermilk and sugar. Whisk in pumpkin puree. Add the dry ingredients to the bowl and whisk until just combined.
1 ⅓ cup 2 Tbs all-purpose flour, 1 Tbs baking powder, 2 tsp cinnamon, ½ tsp nutmeg, ½ tsp salt, ¼ tsp cloves, 4 eggs + 1 yolk, 1 cup buttermilk, 7 tsp sugar, 15 oz pumpkin puree