Take a frying pan. Warm 1 tbsp of butter and cook the dates until hey become soft. Crush the dates and remove from frying pan.
In the same frying pan add the remaining butter and gram flour.Cook well for 5 minutes.
Close the flame and add 1 cup brown sugar,cardamom and khoya.
Now grease a baking tray.Add the date mixture,Sprinkle with brown sugar and walnut son top.
Leave to cool in the refrigerator until set.