Melt-in-your-mouth Shortbread Cookies

1/2 cup of corn starch 1/2 cup of icing sugar (powdered) 1 cup of all purpose flour 3/4 cup of butter (softened) 1/2 tsp of vanilla red and green sprinkles Sift together corn starch, icing and flour with wooden spoon; blend in butter until soft, smooth dough forms. Shape into 3/4 inch balls. Place on un-greased baking sheet, flatten with lightly floured fork. Decorate with sprinkles. Bake at 300 F (150 C) for 15 or 20 minutes.