Melt butter in a saucepan over medium-low heat. Simmer until butter starts to turn a warm amber color and gives off a nutty aroma. Watch it carefully and don’t allow it to get too brown as the liquids will start to evaporate (see NOTES below). Pour the butter into a mixing bowl, cover, and let cool in the refrigerator for 15-20 minutes. Once it is cooled, add brown sugar and sugar and cream for 4 minutes. Scrape down the bowl. Add eggs one at a time (if making the full recipe), mixing after each addition. Add vanilla and mix. Stir in cake or pastry flour, all-purpose flour, baking soda, baking powder, and salt. Mix until just combined. The total flour amount added will equal 3 cups for the large batch. Add chocolate chips and chocolate chunks and mix. Cover with plastic wrap and refrigerate for at least 20 – 30 minutes. 24 -48 hours is ideal. In order to the cookies to spread, let the cookie dough come to room temperature after it has been chilled. If it stays cold, it may hold its shape. Heat oven to 375 degrees. Scoop the cookie dough onto prepared baking pans. Bake until lightly golden on the edges, 9 -11 minutes for medium-sized cookies or 11-13 minutes for larger cookies.