Preheat that oven to 350 °F
Whip your softened butter (leave it out until soft or microwave for 20 seconds)
Beat in the light brown sugar and granulated sugar until creamy (about 2 minutes). Scrape down the sides of your bowl and mix once more.
Add in your vanilla and eggs make sure all is well combined.
Start to gradually add your dry ingredients. Slowly add your flour, baking soda and salt. When scooping your flour be sure to scoop with a spoon in to your measuring cup to ensure you aren't using too much! This is called the scooping method!
Chop your chocolate bar in to chunks (if using). Fold in your chocolate chips & chunks (save some to top your dough with before baking).
With a cookie scoop, roll your dough in to balls (about 3 tbsp worth). Place your balls of dough on a prepared baking sheet about 2 inches apart. - Parchment paper recommended.
Top your dough balls with the remaining chocolate pieces.
If time allows, let your dough chill for at least 30 minutes, this will enhance the flavor and texture of your cookies. If not place these bad boys in the oven.
Bake for 11-13 minutes.
Let cool for 3 minutes before transferring to a wire rack.
Sprinkle with flaky salt & enjoy!