Preheat oven to 350°F (175°C)
Line baking sheets with parchment paper
Whisk together 2 1/4 cups (280 g) all-purpose flour, 1 tsp baking soda, and 1/2 tsp salt
In a separate bowl, beat 1 cup (226 g) unsalted butter (softened) and 3/4 cup (150 g) packed brown sugar until combined
Beat in 1/2 cup (100 g) granulated sugar until smooth
Beat in 2 eggs, one at a time
Mix in 2 tsp vanilla extract
Stir in dry ingredients until just combined
Fold in 2 cups (340 g) chocolate chips
Scoop 1 to 2 tbsp portions onto prepared baking sheets, spacing 2 inches apart
Bake 9–12 minutes, until edges are lightly golden and centers look slightly underbaked
Cool on the baking sheet 5 minutes
Transfer to a wire rack to cool completely