01 -
In a large bowl, whisk together flour, baking powder, and salt. Reserve for later use.
02 -
In a separate large bowl, beat softened butter and granulated sugar until the mixture is light and fluffy.
03 -
Add egg, milk, and vanilla extract to the butter-sugar mixture and mix until fully combined.
04 -
Gradually add the reserved flour mixture, mixing until a uniform dough forms.
05 -
Shape dough into a flat disk, wrap tightly in plastic wrap, and refrigerate for 1 hour.
06 -
Preheat oven to 175°C. Line two baking sheets with parchment paper. On a floured surface, roll out dough to 3 mm thickness. Use skull-shaped cookie cutters to form shapes and transfer to prepared trays.
07 -
Freeze cookies on trays for 10 minutes to help shapes hold during baking.
08 -
Bake until the edges are lightly golden, 10 to 12 minutes. Allow to cool completely on a wire rack.
09 -
In a medium bowl, mix powdered sugar, milk, corn syrup, and vanilla extract until smooth.
10 -
Transfer about one-quarter of the icing into a piping bag fitted with a small round tip. Pipe outlines on cooled cookies.
11 -
Thin half of the remaining icing with additional milk, 5 ml at a time, until flowing consistency is reached. Pour into a piping bag and flood outlined cookies, spreading for full coverage.
12 -
Divide remaining icing among six bowls and tint each with black, teal, orange, green, purple, and yellow food colorings.
13 -
Spoon each colored icing into piping bags fitted with small round tips and decorate cookies with festive skull designs.