Kalonji is name for stuffed vegetables in the state of Uttar Pradesh specially west part of it. Kalonji masala is a roasted spice powder that can be mixed with some other spices or can be used as it is to fill in various vegetables like okra [bhindi], bitter gourd [karela], pointed gourd [parwal], egg-plants [baingan], potato [aloo] etc. This masala can also be sprinkled over while cooking chopped okra. pumpkin or potato. So lets make it.
Dry roast everything one by one leaving amchoor powder. Now grind everything together. Mix amchoor when it cools down & store it in an airtight container.
How to use?
Make ginger garlic & onion paste with very less water. Add this spice powder, red chili powder, salt & mustard oil to it.
Mix well. Keep it aside for 1-2 hrs. so that all water gets absorbed in the spices.
Now stuff it into your favorite vegetable.
Notes
This can be kept at room temperature for 3-4 months in an airtight container