Heat a flat pan on medium-low heat.
Add black cardamom, cloves, cinnamon, black pepper, dried ginger, and bay leaves. Dry roast these until fragrant, about 3 minutes.
Add cumin and continue dry roasting until the cumin becomes dark brown in color.
Once all the spices are toasted, add asafoetida and turn off the heat.
Allow the blend to come to room temperature and transfer into a spice grinder. Grind until everything is powdery.
Optionally strain through a sieve.