Preheat oven to 350 degrees. In a medium sized mixing bowl cream together cream butter, and sugars. Add eggs and vanilla and beat until fluffy.
Add flour, baking soda, baking powder and salt until combined. Add the chocolate chips and mix well.
Using a 1 inch cookie scoop, scoop out the dough and drop on a parchment or sillpat lined cookie sheet. Bake for 7-8 minutes. Remove from oven and transfer to a cooling rack to cool.
Notes
Recipe originally published May 2012. Update 2/19The Cookies won't look quite done but the trick is not to over-bake so they stay chewy.