Cookies, cookies and more cookies

I have made cookies a couple more times since my last attempt. 

Butter cookies
This is the best cookies I have ever made. The exact taste and texture I have craved for....The original recipe is from here. 

Ingredients: 
Plain flour 150g
Corn flour 30g
Unsalted butter 160g
Icing sugar 50g
Vanilla oil 1/4 tsp
Baking powder 1/2 tsp

Method: 
1) Leave butter at room temp and cream it with sugar
2) Add in flour and vanilla oil and baking powder and mix well.
3) Mix into dough and put into fridge for about 15 min. Preheat oven at 180C.
4) Bake cookies for 15-20 min. Leave to cool. 

Chocolate cookies
The original recipe claimed it is a Ben's cookie recipe but it did not taste it Ben's at all...it taste more like those huge cookies from Tesco (and alike).It is chewy and sweet - still taste great but just lack the cake-like texture that makes Ben's cookies unofficially the king of all cookies. 

Ingredients: 
300g caster sugar

200g unsalted butter

275g self raising flour

1 egg

75g cocoa powder

Chocolate chunks

Method: 

1) Leave butter at room temp and cream it with sugar

2) Add in flour and vanilla oil and baking powder and mix well.

3) Mix into dough and put into fridge for about 15 min. Preheat oven at 180C.

4) Bake cookies for 15-20 min. Leave to cool.