Preheat the oven to 375F. Line a sheet pan with parchment paper then set aside.
In a medium-sized mixing bowl mix together the flour, baking powder, and salt until incorporated. Set aside.
In a large mixing bowl cream together the butter and both sugars until it's light and fluffy, 3-5 minutes.
Next, add the egg and vanilla extract. Stir to combine.
Stir in the flour mixture into the egg/sugar mixture until there aren't any more streaks of flour.
Add the chocolate chips and chopped walnuts.
Use a cookie scoop to form smooth dough balls (2 tablespoons), and place them 2 inches apart on the cookie sheet. This recipe makes about 1 dozen cookies.
Bake for 10 - 12 minutes, or until they are lightly golden brown on the edges. The middle will be a little soft. Don't overbake!
Take them out of the oven and let them sit on the cookie sheet for another 5 minutes. Serve with a glass of milk or your favorite drink! Enjoy!
Notes
If you don’t have brown sugar, stir together 1 teaspoon of molasses and 6 tablespoons of white sugar.
If the dough is spreading too much in the oven, allow the dough to chill for 20 - 30 minutes in the refrigerator so the butter can firm up a bit more.
All nutrition information is automatically generated and should be only used as a rough estimate. This recipe card may contain affiliate links.