In a large bowl, add butter and sugar; beat with a mixer until creamy.
Add egg and vanilla extract, beat until combined.
Add baking soda, salt and flour; beat until cookie dough is formed.
Add ¼ cup chocolate chips and stir with spatula.
Place cookie dough in the freezer to chill for 20 minutes.
In the meanwhile, preheat oven to 350 degrees F and line 2 cookie sheets with unbleached parchment paper or silicone baking mats.
Scoop dough with a regular scoop, roll into balls and place on prepared baking sheets 3 inches apart.
Bake for 10 minutes and remove while cookies appear underbaked, puffy and light in color.
Strategically place remaining 2 tablespoons of chocolate chips into cookies while they are still hot.
Let cookies cool on a baking sheet for 15 minutes before transferring onto a cooling rack to cool more.
