01 - 
                Preheat the oven to 200°C (400°F).
              
              
              
                02 - 
                Place diced butter into a mixing bowl and beat on low speed. Add the sugars and continue beating on medium speed until the mixture is smooth, about 1 minute.
              
              
              
                03 - 
                Add the eggs to the butter and sugar mixture and beat on medium speed until just incorporated, approximately 30 seconds.
              
              
              
                04 - 
                Turn the mixer off. Add the homemade cake flour, all-purpose flour, baking powder, baking soda, and sea salt. Mix on low speed until the dry and wet ingredients are fully combined.
              
              
              
                05 - 
                Stir the walnuts and chocolate chips into the batter evenly using a rubber spatula.
              
              
              
                06 - 
                Divide the dough into 8 equal portions, approximately 170g each. Use your hands to shape the cookie dough into rough shapes without flattening.
              
              
              
                07 - 
                Place 4 cookies per baking pan and bake for 11 minutes. The cookies should have slightly golden tops and bottoms. Do not overbake.
              
              
              
                08 - 
                Let the cookies cool for 15 minutes before serving.