Preheat the oven to 175 degrees celsius (351 degrees fahrenheit) and line a flat tray with parchment paper.
2. Step
In a big bowl, mix together the butter, white sugar, brown sugar and mix until light and fluffy, then mix in the egg and vanilla.
3. Step
Sift in the dry ingredients together : flour, cornflour, baking powder, baking soda and cinnamon. Mix until successfully reached cookie batter consistency.
4. Step
In a small bowl mix the brown sugar, white sugar and cinnamon for the cookies to be rolled in
5. Step
Shape the cookie dough into a small circle and roll in the sugar mixture
6. Step
Flatten the cookies to about the size of your palm and put in the oven for 12 minutes or lightly brown on top .
7. Step
In a big bowl mix together the butter, milk, icing sugar and cinnamon for the icing. Put in a piping bag and cut off about 2cm from the tip.
