Preheat oven to 350℉ (180℃)
Prepare two baking sheet pans by lining with parchment paper or silicone baking mats.
In a medium bowl, whisk together flour, baking soda, salt and ground cinnamon
2 ⅓ cups All-Purpose Flour, 1 teaspoon Baking Soda, ¼ teaspoon Salt, ¼ teaspoon Ground Cinnamon
Using a stand mixer with the paddle attachment, mix the butter and brown sugar on medium speed until the mixture becomes light and fluffy, about 2 to 3 minutes. Be sure to scrape down the sides of the bowl as needed. Note: A hand mixer can also be used for this step.
½ cup Unsalted butter, ½ cup Brown sugar
Add egg to mixing bowl. Mix on medium speed until combined, scraping the bowl as needed.
1 large Egg
Add maple syrup. Mix on medium speed until well combined.
⅓ cup Maple syrup
Add flour mixture and mix on low speed until combined.
Add chopped walnuts and stir in by hand.
¾ cup Walnuts
Scoop balls of dough using a cookie scoop or spoon (approximately 1 ½ tablespoons per cookie).
Place balls of dough on prepared baking sheets leaving approximately 2 inches of space between each cookie.
Bake cookies for 8 - 10 minutes, or until tops and edges of cookies are browned.
Let cookies cool on baking sheets for 5 to 10 minutes, then transfer to a wire rack to cool completely.