Add flour, corn starch, baking soda and salt and continue mixing until mixture becomes a thick cookie dough.
Stir in white chocolate chips.
Cover and refrigerate 2+ hours (preferably overnight). Preheat oven to 350ºF
Use large scoop to portion out dough. Flatten rounds slightly then place on cookie sheet.
Bake for 11-12 minutes. Remove from oven and leave cookies on baking sheet for 5 minutes before transferring to cooling rack. Makes approximately 15 cookies.