In a medium bowl, mix together the flour, pumpkin pie spice, cinnamon, sea salt, baking soda and baking powder. Set aside.
In the bowl of a standing mixer fitted with the paddle attachment, or in a large bowl using a hand-held mixer, cream together the butter, granulated sugar and brown sugar.
Add vanilla, pumpkin puree and egg and beat until combined and light and fluffy.
Add dry ingredients and beat on medium speed until combined.
Then, add the oatmeal and beat until evenly distributed.
If desired, add mix-ins and stir on low speed until evenly distributed throughout the batter.
Transfer the dough to an airtight container and chill for at least 1 hour, and up to overnight.
After chilling, preheat oven to 375 degrees F.
Line two large baking sheets with silicone baking mats or parchment paper.
Use a 1.5-2 TBS cookie scoop to measure out a portion of cooking dough, roll it into a ball and place on the prepared baking sheet 1 ½” apart. Gently press down the tops of each ball of dough to slightly flatten. Repeat until all the dough is used.
Bake In the preheated oven for 10 minutes, or until cookies look set and slightly puffed.
Remove the cookie tray from the oven and tap it on the counter to release some of the air from the cookies.
Let the cookies cool on the cookie sheet for 3-5 minutes.
Transfer the cookies from the cooking sheet to a wire cooling rack to cool for at least 30 minutes before eating. The cookies “deflate” as they cool and achieve the chewy texture
Video
Notes
Ingredient Substitutions
All-purpose flour. Use gluten-free all-purpose baking flour to make this recipe gluten-free.
Salted butter. Unsalted butter is a good substitute.
Oatmeal: For the perfect, chewy texture use old-fashioned (or rolled) oats. You can use quick oats, just be aware it will change the texture of the cookies.
Light Brown Sugar. If you like a little bolder, molasses taste use dark brown sugar.
Granulated Sugar. white sugar, organic cane sugar, and coconut sugar are all good choices.
Sea salt. I bake with pure, fine sea salt. If you are using iodized salt I recommend decreasing the amount of salt by half.
Pumpkin puree. Use canned or fresh pumpkin puree.
Or, to make only 1 tablespoon of pumpkin pie spice combine:
Place the measured and rolled cookie dough balls on a cookie sheet and put them in the freezer for 1-2 hours or until firm.
Once firm, transfer the dough balls to an airtight, freezer-friendly container (I recommend either a glass storage container or a freezer-friendly ziplock bag).
Freeze for up to 2 months.
To bake: remove dough from the freezer and let it come to room temperature. Then bake according the the recipe instructions.
Store/Freeze CookiesStore these pumpkin oatmeal cookies in an airtight container at room temperature for up to 3 days or in the freezer for up to 1 month.