Preheat oven to 375.
Mix all wet ingredients (pumpkin, butter, syrup, egg, and vanilla) in a medium mixing bowl.
Mix all the dry ingredients in a large mixing bowl.
Incorporate the wet ingredients into the dry ingredients and mix well.
Optional: add in your choice of raisins or chocolate chips (approx 3/4 cup)
Drop spoonfuls of dough (slightly larger than 1 Tbsp) onto parchment lined baking sheet.
Cook at 375 for approx 26-28 minutes.
Keep extra cookies in refrigerator for 4-5 days.