Carrot Cake with butter

2 1/4 cups all-purpose flour 1 tablespoon baking powder 2 teaspoons ground cinnamon 1/4 teaspoon ground nutmeg 1/4 teaspoon ground allspice 1/4 teaspoon salt[...]

1 1/4 cups granulated sugar 3/4 cup canola oil 1/3 cup low-fat buttermilk 2 large eggs 1 teaspoon vanilla extract 2 cups all-purpose flour 1 1/2 teaspoons[...]

1 3/4 cups all-purpose flour 2/3 cup whole wheat flour 2 teaspoons baking soda 1/8 teaspoon salt 1 teaspoon cinnamon 3/4 teaspoon allspice 1/4 teaspoon nutmeg[...]