In a large bowl, cream together the softened butter and granulated sugar until light and fluffy.
Beat in the milk and vanilla extract until well combined.
In a separate bowl, whisk together the heat-treated flour and salt.
Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix.
If desired, stir in sprinkles for added color and fun.
Serve immediately or store in an airtight container in the refrigerator.
Notes
Ensure your flour is heat-treated to kill any potential bacteria before consuming raw dough. You can do this by spreading the flour on a baking sheet and baking at 350°F (175°C) for 5 minutes.