Butter cookies

Ingredients

250g butter
100g castor sugar
1 egg yolk
1/2 tsp vanilla extract
1/2 tsp salt
300g plain flour
30g custard powder


Method:

1. Cream butter and sugar till light and fluffy


2. Add egg yolk, salt and vanilla


3. Fold in flour and custard powder


4. Shape into balls and use a fork to press it flat


5. Sprinkle some sugar


6. Bake in 180 degree for 15 mins