Rinse 1/2 cup sago first and drain water. I have used the bigger white variety of sago or sabudana or javvarisi.
Add it to a bowl, soak in water till immersing level for an hour. Soaking is really not must but it helps in cooking sago faster.
After one hour you can see the pearls grow in size as shown below.
Rinse it well and drain water completely, Set aside.
Add 1 and 1/2 cups of water to a pan and let it boil.
Once it starts to boil add drained sago pearls. Give a quick stir.
Cook until it turns transparent around 10 mins. Keep stirring in between to avoid burning at the bottom.
The pearls have become transparent as shown this is perfect.
Now add 2 cups milk.(boiled already).
Give a quick mix.
Add 1/2 cup granulated white sugar.
Give a quick mix. Let it cook for around 10 mins or until thick and creamy.
Now it has become slightly thick.
To a tadka pan add 1 tablespoon ghee - add 1 tablespoon broken cashews fry until golden.
Add 1 tablespoon raisins.
Fry until it bubbles up well like shown. Now both cashews and raisins are fried well.
Both cashews and raisins have turned golden brown so switch off.
Add this to payasam.
Add 1/4 teaspoon cardamom powder.
Give a quick mix.
Switch off. It may look running at this stage but may turn slightly thick after cooling down.