Triple choc chip cookie recipe help needed please

[SueW]

I have a recipe for choc chip cookies which is:

150g flour
1/2 tsp baking powder
150g sugar (mix brown/white)
125g butter
1 egg
100g choc chips

How much cocoa do I need to add to make the dough chocolatey? And do I need to take any of the flour out when I add cocoa?

[livinginadreamworld]

I use 125g flour and 25g cocoa, for a decent chocolatyness!

[SueW]

Thanks living