Dry roast roast the nuts in a heavy bottom pan for 2 minutes.Keep it aside.
In the heavy bottom pan, add ghee with poppy seeds,let it cook. and sugar so that it starts to melt.
Add sugar to the mix, let is cook on low flame
Keep stirring on a medium flame till sugar gets caramelized
Add jaggery and cook for 2 minutes on low flame,till it forms a homogeneous mixture.
Add cardamom powder to it along with nuts and turn off the heat.
Pour the mixture on a greased plate/baking sheet and roll with a rolling pin to even it.
While it is still warm cut into desired sized incisions and let it cool.
Break into pieces once it cools off
Store brittle in a tight container.