Pre-heat the oven to 180°C and grease or line a loaf tin.
In one bowl, combine the dry ingredients (flour, baking powder, salt, and spices) and whisk well.
Let the lemon juice sit in the milk for a few minutes. In another bowl combine the sugar, pumpkin, and oil. Add the milk and lemon juice, and mix well.
Fold the dry ingredients into the wet. Then, fold in the extra cup of goodies (raisins, chocolate chips, nuts).
Turn the mixture into the loaf tin, and bake for 45 minutes or until golden brown on top and a wooden skewer comes out clean.