Add in your oil or applesauce, I only had oil in my cupboards this time, and I really wish I had the applesauce instead, it's so much healthier and adds a nice natural sweetness to the recipe.
Add in the pumpkin and water. Stir.
Stir in the brown sugar until dissolved as much as possible.
In another bowl, whisk together the flour, spices, baking soda and powder. Add in your chocolate chips.
Mix them into the wet mixture until just combined. When baking with pumpkin, you can't over handle it or the end baked result goes rubbery. Add the dry mix into the wet, and very gently mix it together until just...JUST....mixed.
Fill the muffin tins to about 3/4 full. Bake them at 375 for 15 or so minutes until done.