Put 4 tbsp ghee in microwave for few seconds.
mix cashew nuts and walnuts.
Microwave this mixture for 5 minutes.
Separate cashew nuts and keep it for few minutes.
Add sugar and 4 tbsp water to the ghee.
Microwave it for 2 minutes and stir it.
Mix rava, cardamom powder and more ghee.
Microwave this mixture for 3 seconds on high temperature.
Add essence and dry fruits.
Karachi Halva is ready