In a bowl combine the spices, baking powder, flour, oat flour and brown sugar. Set aside
1 teaspoon cinnamon, ½ teaspoon nutmeg, ½ teaspoon grated ginger, ¼ teaspoon black pepper, 2 teaspoon baking powder, 1 ¾ Cup flour, ¼ Cup oat flour, 1 Cup brown sugar