Preheat oven to 325
In a large mixing bowl cream together the butter and sugars very well.
Add vanilla, eggs, and salt, and mix well.
Add corn starch, baking soda, baking powder, and flour, and mix until combined.
Stir in chips and nuts.
Drop by 2TBS onto an ungreased baking sheet (I use a silicone baking mat) 2" apart. Bake for 10-11 minutes or until golden on the edges.
Allow to cool a few minutes on the baking sheet before transferring to a cooling rack to cool completely. Store in an air tight container.
