Dry roast coriander seeds, cumin seeds, fennel seeds, cinnamon, cloves, black cardamom, bay leaf, and black peppercorn over medium heat until fragrant and nicely browned. Stir frequently.
Never roast the spices on high heat. High heat burns the spices and turns the masala bitter.
Remove the pan from the heat, and let the spices cool down for 10 minutes.
Never blend hot spices. This is where most people go wrong. Hot spices release their oils when ground, turning your masala into a damp clump. Let everything sit for at least 10 to 12 minutes until cold to the touch.
Transfer them to a grinder with the remaining ingredients.
Pulse 4 to 5 times, then run for 20 to 30 seconds. You want a fine, even powder. Spoon the finished masala into a clean, dry glass jar with an airtight lid. Label it with the date. Use as desired.
Pass the masala through a fine-mesh sieve for an ultra-smooth texture. Re-grind any coarse bits.
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Notes
Use premium-quality ingredients to make the best pav bhaji masala. The spices must also be fresh for the best taste.You can adjust the quantity of red chilies as per your taste.