Cream the Butter and Sugar – In a large mixing bowl, beat the softened butter and icing sugar together until light and fluffy.
Add Egg and Vanilla – Mix in the egg and vanilla essence until well incorporated.
Sift and Combine Dry Ingredients – In a separate bowl, sift together the cake flour, corn starch, and milk powder. Gradually add this to the butter mixture, stirring gently to combine.
Chill the Dough – Wrap the dough in plastic wrap and refrigerate for about 30 minutes to make handling easier.
Preheat Oven – While the dough chills, preheat your oven to 170°C (340°F). Line a baking tray with parchment paper.
Shape the Cookies – Roll the dough into small balls or pipe into classic Danish butter cookie shapes.
Bake – Arrange the cookies on the prepared baking sheet and bake for 12-15 minutes, or until the edges are lightly golden.
Cool and Enjoy – Allow the cookies to cool on the baking tray for a few minutes before transferring to a wire rack to cool completely.