Pumpkin Spice Cupcakes: - 1 3/4 cups all-purpose flour - 1 teaspoon baking powder - 1/2 teaspoon baking soda - 1/2 teaspoon salt - 1 teaspoon ground cinnamon - 1/2 teaspoon ground ginger - 1/4 teaspoon ground nutmeg - 1/4 teaspoon ground cloves - 1 cup pumpkin puree - 1/2 cup vegetable oil - 1 cup granulated sugar - 1/2 cup brown sugar - 2 large eggs - 1 teaspoon vanilla extract Bake @ 350 for 18-20 minutes, or until a toothpick comes out clean. Spiced Buttercream Frosting: - 1 cup softened unsalted butter - 4 cups powdered sugar - 1 teaspoon vanilla extract - 2 tablespoons milk - 1/2 teaspoon cinnamon