Big, thick and chunky chocolate chip cookies inspired by Levain Bakery with crusty edges and soft insides. These really are a true copycat recipe - try them and see! You can make them at home for a fraction of the cost.
Combine flour, baking powder, baking soda and salt in a medium bowl and whisk to blend evenly.
Combine soft butter with both sugars and vanilla extract in a large bowl or the bowl of a stand mixer. Mix by hand using the "creaming method" with a wide rubber spatula to smear the butter and sugar together and mix vigorously until smooth, pale and fluffy. You can also use a handheld mixer. If you use a stand mixer, secure the paddle attachment and mix on medium speed for 2 minutes. Add the egg and mix until well incorporated.
Add the flour mixture to the butter mixture all at once and fold it in. Add chocolate chips and chopped walnuts and fold them in until evenly distributed.
Use a 2-oz cookie scoop to portion dough so you get 4 ¼ oz portions. You will need two scoops per cookie. Alternatively you can divide the dough into 5 portions. Leave the dough balls rustic and don’t roll into smooth balls. Place them onto prepared baking sheets spacing them 3 inches apart and bake for 10 minutes, then reduce oven to 350°F and bake for another 5-7 minutes until golden brown on the surface and still soft in the middle.
Transfer baking tray to a rack and let cool for 3 minutes before transferring to the rack to finish cooling.