Add carefully measured all-purpose flour to the cookie mixture. When measuring flour make sure you stir the flour and never tap it or shake it. It should be measured with very light hands. Also add baking soda and salt. Stir just until the dry ingredients are mixed in. Fold in semi-sweet chocolate chips.

Scoop ping pong ball size scoops of dough onto the cool baking sheet.
Leave plenty of room for the cookies to spread. Bake for 10-12 minutes or until cookies are golden brown.
Allow cookies to cool on the cookie sheet for 4-5 minutes to firm up before removing them to a cooling rack.