Place the flour in a microwave-safe bowl and heat in 30-second intervals at max power, stirring in between bursts, until the temperature of the flour reaches 165 degrees F.
Transfer flour to a cool dish and place in fridge to cool completely.
Meanwhile, combine the softened butter, brown sugar and sugar in a bowl and use a hand mixer to beat until light and fluffy. Mix in the milk and vanilla, scraping the sides of the bowl as needed.
Add in the flour and mix until combined. Fold in the chocolate chips and enjoy right away, or chill in an air tight container in the fridge for up to 1 week.
*In order to safely consume flour, it must be heat-treated to properly kill any chance of bacteria. Please do not skip this step.**Since this cookie dough does not contain any leavening ingredients, it is not recommended to bake into cookies.