First, set the oven to 350 degrees.
Then, in a bowl, mash the pumpkin puree and mix in the baking soda. Let it sit for a few moments.
Now, in your mixer, beat the butter and sugar. Add in the egg and vanilla and beat for at least 7 minutes. Then, add in the pumpkin.
Sift the flour, salt, and cinnamon together and add to the batter. Mix gently until combined. Fold in the chocolate chips.
Spoon out drops onto a silicone line baking sheet and bake for about 18 minutes – until lightly golden brown. Cool on wire racks.