Take milk add lemon juice mix well and let it rest for 10min.

In another bowl sieve flour, cocoa powder, baking soda, salt add chopped walnut, choco chips, and mix well.

In the milk mixture add ghee, sugar, coffee powder and mix well.

Add dry ingredients to wet mixture add few drops of vanilla essence and mix well

Transfer batter to the baking tin, add Oreo, white choco chips on top of it, and bake for 35-40 min slow flame