Pre-heat oven Gas mark 4/180 Degrees C (may need adjusting for fan ovens)
Sift the flour together with the cinnamon and mixed spice.
If using caster sugar also sift that trough.
Just rub the muscovado sugar with your fingers to crumble it up into the flour
mix everything together until roughly combined
Add the orange zest and mix again
Add the vegetable oil and eggs to the dry ingredients then mix again until well combined
Add the carrots and mix until well combined
Add the walnuts and mix until well combined
Then pour into muffin tin, cake tin etc.
Bake for about 25 minutes then check using the toothpick method