A

In a bowl cream butter,sugar egg &vanilla flavour add in ur flour,and baking soda and mix,,u will have a soft moist dough divide it to two mixture den add cocoa powder to d other one and mix (dats u have plain and chocolate mixture

Put it in the fridge for 30min to 40min

SCOP and mould into a ball shape deflate d ball and arrange on a lined tray leaving few inches in between

Beak in a pre heated oven