In a separate bowl, whisk together the flour, baking powder and salt.
Gradually add the dry ingredients to the butter mixture, alternating with the milk, until a soft dough forms.
Roll the dough into small balls, about 1 inch (2.5 cm) in diameter, and place them on the prepared baking sheet.
Gently press each ball down with a fork to create a washboard pattern.
Bake for 12–15 minutes, or until the edges are golden brown.
Allow the cookies to cool on the baking sheet for a few minutes before transferring them to a wire rack to cool completely.
