Preheat the oven to 325℉. Line baking sheets with parchment paper or silicone baking mats.
Sift together the flour, baking soda, and salt. Set aside.
2 cups flour, ½ teaspoon baking soda, ½ teaspoon salt
Beat together the cooked butter, brown sugar, and white sugar. Add vanilla extract, egg, and egg yolk, and beat until light and creamy.
¾ cup unsalted butter, melted and cooled, 1 cup brown sugar, ½ cup white sugar, 1 tablespoon pure vanilla extract, 1 large egg, 1 large egg yolk
Add in the dry ingredients and chocolate chips, and mix until well combined. Chill the dough for 45 minutes.
2 cups chocolate chips
Using a #30 scoop, drop onto the prepared baking sheet and bake for 12 - 15 minutes. Remove from the oven and let cool on the baking sheet for 5 minutes before removing to a cooling rack to cool completely.