Lightly roast muskmelon seeds , sesame seeds and almonds. Roast them individually and make sure they are just toasted.
Remove and let them come to room temperature.
Once cool first grind seeds in short bursts. This should not take more than 2-3 seconds.
Next grind the almonds , again grind them in short bursts.
Pulse them else they will clump together.
Add cardamom powder and grated jaggery and pulse a couple of times , till everything comes together.
Check for sweetness, if required add more jaggery and pulse again.
Remove on a plate , pinch out small balls and shape them into ladoos.
Garnish with pistachio powder.
Store in an airtight container.