Spread flour out onto a baking sheet lined with parchment paper and cook it at 350 F for 5 minutes to heat treat the flour. (I often heat treat more flour and save it for later in an airtight container since this is such a small amount)
In a small bowl, cream together your butter and your white sugar until mixed.
Add in the vanilla and milk and stir to combine.
Add in the flour and salt until mixed. Add a teeny bit more flour if needed for the right texture.
Dump in the white chocolate and chocolate chips, and sprinkles if desired.
Eat immediately, or roll into cookie balls before eating.
