Beat butter until creamy, but not oily.

Sift cornstarch, icing sugar, salt, and flour together.

Add the sifted dry ingredients to the creamed butter.

Mix with a spoon until just combined.

Turn the mixture out onto a lightly floured surface.

Knead the dough until it starts to crack slightly.

Pat the dough to about 1/3 inch thickness.

Cut out cookies using cookie cutters.

Place cookies on a baking sheet.

Bake in a preheated oven at 325 degrees Fahrenheit for 20 minutes.

Let cool completely before serving.