01 -
In a large mixing bowl, beat the unsalted butter and powdered sugar until the mixture is pale and fluffy.
02 -
Add eggs and milk to the butter mixture; blend until smooth and fully combined.
03 -
Add all-purpose flour, salt, vanilla extract, and almond extract to the bowl; mix until a soft dough forms.
04 -
Divide dough into two equal portions; tint one half with purple gel food coloring. Divide the remaining half into two; tint one with black gel food coloring, and leave the other plain for the white layer.
05 -
Roll the black dough between sheets of parchment into a 15 × 30 cm rectangle. Repeat for the white dough. Place the white rectangle on top of the black; roll lightly to adhere.
06 -
Roll the purple dough to a 15 × 30 cm rectangle. Sprinkle evenly with purple sprinkles.
07 -
Layer dough rectangles: stack black-white on purple. Carefully roll from the long edge into a tight log. Roll the outside of the log in black or chocolate sprinkles to coat.
08 -
Wrap the dough log in cling film and refrigerate for at least 1 hour, until firm for clean slicing.
09 -
Preheat oven to 180°C. Slice chilled log into 1 cm thick rounds and arrange on baking trays lined with parchment. Bake for 10 minutes or until just set.
10 -
Allow cookies to cool completely on a wire rack before serving.