In a bowl add butter and sugar.beat them till its light and fluffy.

Now add one egg and vanilla essance beat it. Now add flour with coco powder,baking powder and pinch of salt. Fold this mixture.

Add chopped walnuts and choco chips. Again mix nicely. It forms like cookie dough.

Now take a baking tray lined with butter paper. Take small portion of dough like ball and place in baking tray. Make all cookies.

Bake in preheated oven at 180 degree for 10 to 15 minutes.