Mix together sugar, oil, eggs and pumpkin until smooth.
Add in the salt, flour, baking powder, cinnamon, baking soda, nutmeg and cloves and mix until combined. If you are adding in craisins add them into the batter now.
Pour into muffin tins, filling up each one around 3/4 of the way. Top each one with some pumpkin seeds and pumpkin pie spice if you would like.
Bake for around 17-20 minutes, until a toothpick is inserted cleanly.