Preheat oven to 375 F . Grease 12 muffin cups or 1 9×5 inch loaf pan with cooking spray.
In a large bowl, combine all dry ingredients. In a smaller bowl, combine the milk, egg and oil. Fold the wet and dry ingredients together just until moist. Carefully fold in the pumpkin. Batter will be lumpy. Bake muffins for 15-18 minutes and the loaf for about 45 minutes.
Let cool to warm or room temperature and then drizzle with vanilla glaze ( recipe follows).