Preheat the oven to 375 F / 190 C. Line a cookie sheet with parchment or silicon. Have your mise en place ready.
In a small bowl, mix flour, baking soda and salt; set aside.
Cream the butter.
Add the sugars and beat until the mixture is light and fluffy
Beat in egg and vanilla until smooth. Stir in flour mixture just until blended (dough will be stiff).
Stir in chocolate chips or add them by hand..
Using a small ice cream scoop, drop dough on to a parchment paper lined cookie sheet 2 inches apart. You should be able to fit 12 cookies on each sheet.
Flatten each cookie a little bit with a fork, then put a walnut in the center..
Bake for 9 minutes. Remove from the oven and let the cookies sit on the stove top on the cookie sheet. After about 5 minutes, you can transfer them to a cooling rack to cool completely. Enjoy!
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