In a medium or large bowl, mix together all dry ingredients. Set aside.
In a separate bowl, mix all wet ingredients (start with only 1 1/2 cups of buttermilk), making sure to mix really well--all the ingredients should be completely incorporated.
Make a well in the center of the dry ingredients, and pour in the wet ingredients.
Stir until just combined.
Add in chocolate chips.
If the batter seems too thick, thin it out with the extra 1/2 cup of buttermilk, pouring it in 1/8 cup at a time.
Grease a griddle with cooking spray, and let it get screaming hot.
Turn the temperature down to medium heat, and pour about 1/4 cup of batter for each pancake.
Cook pancakes until tops are covered with bubbles and edges looked cooked. Flip over, and cook until thoroughly done.
Top with syrup, whipped cream, or any sauce you like!
Enjoy the pumpkin heaven!