01 -
Preheat the oven to 350°F (175°C) and line a baking tray with a silicone baking mat.
02 -
Beat the softened butter with the sugar until the mixture is light and fluffy.
03 -
Add the egg yolks and your choice of almond or vanilla extract, mixing until fully combined.
04 -
Gradually mix in the flour and salt, then add the milk and beat until a thick, doughy consistency forms.
05 -
Using an Ateco 825 piping tip, pipe 1 1/2 inch swirls onto the mat, spacing them about 2 inches apart.
06 -
Bake the cookies one tray at a time for 9 to 11 minutes until edges are lightly golden.
07 -
Allow the cookies to cool on the tray for 5 to 10 minutes before transferring them to a wire rack.
08 -
Optionally, dip cooled cookies in melted Ghirardelli chocolate wafers and decorate with sprinkles.