Heat treat your flour by placing it in a microwave safe mixing bowl and heat on high for 50-60 seconds until the internal temperature reaches 166°F.
In a large bowl using an electric mixer or stand mixer, cream together the brown sugar, granulated sugar, and butter. Beat until fluffy and light in color, about 1 minute. Beat in the vanilla and salt until combined.
Beat in heat-treated flour until just combined. Add milk one tablespoon at at time and beat until dough starts to come together. Stir in the miniature chocolate chips with rubber spatula.
