To prepare this crispy chikki, first, take a medium sized pan and place it on low flame. Then, dry roast white sesame seeds in it until they become golden brown. Once done, turn the flame off and keep aside for a while.
Now, take another large sized pan and place it on medium flame. Then, add ghee along with chopped jaggery in it. Stir them until the jaggery melts completely and you get a thick syrup.
Next, add the roasted sesame seeds in the jaggery syrup and stir well. Then, add almonds, pistachios, cardamom powder in the pan and mix well.
Now, quickly transfer the mixture on a butter paper or a greased steel tray. Then, roll and flatten the mixture immediately in a shape of a thin rectangular block.
Lastly, divide and cut the block equally in 12 pieces using a sharp knife. Keep aside for next 20 minutes. Serve them once cooled immediately.