Preheat your oven to 350°F (175°C). Spread all-purpose flour evenly on a baking sheet and bake for 5 minutes. Let it cool completely before using.

In a large mixing bowl, combine softened salted butter, brown sugar, and granulated sugar. Beat together on medium speed until light and fluffy, about 2-3 minutes.

Add milk and vanilla extract to the mixture. Mix on low speed until fully combined and smooth, about 30 seconds.

Gradually add the cooled, heat-treated flour and a pinch of salt. Mix on low speed just until the dough comes together.

Gently fold in chocolate chips using a spatula, ensuring even distribution.

Scoop out the cookie dough and serve immediately, or transfer to an airtight container and chill in the refrigerator for up to a week.