Cookies: Cornflake cookies

Cornflake cookies
Recipe by Amy Beh

Ingredients:
(a) 100g butter
     110 castor sugar (I try 60g)

(b) 1 egg yolk
     1/2 tsp vanilla essence (optional)
(c) 1/2 tsp grated rind of orange
(d) 125g self-raising flour
     1 tbsp corn flour
(e) 100g cornflakes, crushed lightly

Method:
1. Cream (a) until mixture turns light and fluffy.
2. Beat in egg yolk (b) and add in (c).
3. Fold in (d) and mix.
4. Final add in (e).
5. Shape mixture and place on lightly-greased baking trays.
6. Preheated oven 170oC, 20-25 minutes.

My note:
I tried n-times on this recipe. Cornflake cookies is very delicious. Highly recommended.