In a small bowl, whisk together the flour, baking soda, and salt.
Mix together the softened butter, sugar, and brown sugar with a spoon or with an electric mixer in a medium bowl or large bowl.
Add the egg and vanilla and mix until incorporated.
Add the flour mixture to the butter mixture and stir until moistened.
Stir in the one cup of chocolate chips.
Scoop 2 tablespoons of dough for each cookie and place on a parchment-lined baking sheet about 2 inches apart.
Bake the cookies at 350 degrees for 11-13 minutes, until the edges begin to turn golden brown.
Remove from the oven and allow the cookies to rest on the baking sheet for 5 minutes before transferring to a cooling rack.