Vanilla cookies

Ingredients

• 90g butter
• 40g icing sugar (or for taste)
• 130g plain flour (sifted)
• 1 tbsp corn flour (sifted)
• 1 1/2 tbsp vanilla essence
• 3/4 tbsp milk
• 2 tbsp icing sugar (for dusting, keep aside)
• 1 tbsp plain flour (to dip fork over)