Combine the jalapeno, mint, water, coconut, salt, and lime juice in the bowl of a food processor and blend into a smooth paste.
Scrape the paste into a bowl or a jar.
Heat the ghee in a small skillet over medium heat.
Add the mustard and cumin seeds, cover, and heat until they begin to pop.
Remove the skillet from the heat.
When the seeds are cool, add them to the mint paste with the water and mix well.
If possible, let the flavors blend for a couple of hours before serving.