Preheat oven to 350 degrees with the rack positioned in the lower third of the oven.
Cream butter until light and fluffy..
Add sugar, brown sugar and salt and continue to mix until smooth.
Add the egg and vanilla and beat on medium speed for one minute.
In a small bowl, mix together the flour and baking soda.
Using a wooden spoon, add the flour and chocolate chips to the butter mixture and fold the ingredients in, stirring until the flour is incorporated.
Line 2 baking sheets with parchment.
Spoon heaping teaspoons of dough 2 inches apart onto baking sheets. I like to use a small 1 ½ inch ice cream scoop which makes nice round mounds.
Bake one sheet at a time for 12 to 15 minutes, until lightly browned, turning the baking sheet halfway through the baking time. The cookies will still be very soft when you take them out of the oven - don't over bake!
Let the cookies cool for a about 5 minutes and then transfer to a rack to cool further.
If they don’t get scarfed down in one sitting, store in an airtight container.