Preheat oven to 350 degrees F.
In a large mixing bowl, or the bowl of your stand mixer, beat together the oil (or butter) and sugar until well combined.
Add beaten egg and vanilla to this mixture.
In a separate bowl, sift together your remaining dry ingredients (flour, baking powder, baking soda, spices, and salt).
Alternate adding flour mixture and canned pumpkin to the oil/sugar mixture. I usually take a scoop of flour, mix, a scoop of pumpkin, mix and continue this alternation until all ingredients have been added.
Once all flour and pumpkin is well incorporated, fold in your chocolate chips.
Use a teaspoon to drop cookies in small mounds on a cookie sheet. You could also use a cookie scoop for more uniform cookie sizes.
Bake for 10-12 minutes. Once done baking, remove from the cookie sheet and place on a cooling rack.Cookies will be fluffy and soft like a muffin top.
