First pre heat otg for 5 mins
Thn in a bowl take flour cocoa baking powder baking soda sniff it all
Thn in another bowl take butter sugar milk maid milk and chocolate and mix it completely
Slowly slowly mix solid material into liquid and give a good mix till no lumps found
Thn in a baking tray grease some oil
And pour all the batter into it and put walnuts all around and bake it for 35 minutes
Check with tooth pic stick