Preheat oven 375F. Line 14” pizza pan with parchment. I use my Kitchen Aid mixer. To bowl, add butter, sugars & salt. Cream on 4 for 3min. Add eggs & vanilla, on Stir, slowly incorporate fully. Add flour & baking soda. On Stir, slowly incorporate. With a little flour still showing, add chips then Stir til just combined. Use spatula to scrap & finish blending. Spread dough on pan leaving 2” or so border. (Optional, refrigerate for 30min.) Bake 22min. Once cool, decorate with my buttercream.