Prepare the Dough:
In a large bowl, cream together the softened butter and sugar until light and fluffy.

Add the eggs, milk, anise extract, and vanilla extract. Mix until well combined.

In a separate bowl, combine the sifted flour, baking powder, and salt.

Gradually add the dry ingredients to the wet mixture, mixing until a soft dough forms.

Shape the Cookies:
Lightly grease baking sheets. Roll pieces of dough into ½-inch thick logs, then twist and shape them into knots.

Place the knots on the prepared baking sheets.

Bake:
Bake at 400°F (200°C) for about 8 minutes, or until the bottoms are lightly golden.

Allow the cookies to cool completely before icing.

Prepare the Butter Icing:
In a bowl, mix the confectioners’ sugar and butter until smooth. Add the anise extract and gradually mix in the milk until the icing reaches your desired consistency. Add food coloring if desired.

Glaze the Cookies:
Dip the cooled cookies into the icing.

Let the icing dry completely before serving.