Chaat masala's tangy, hot, sweet, funkiness brightens up roasted vegetables, egg salad, fruit salad, soups, salad dressing, and anything else that needs a bit of zing.
In a frying pan or sauté pan over medium heat, add the coriander seeds, cumin seeds, carom seeds, and fennel seeds. Toast until the carom seeds become slightly darker, and the spices become fragrant, taking care not to burn the seeds. This will take about 2 to 4 minutes.
Remove from the heat and allow to cool.
Using a high powered blender, spice grinder, or mortar and pestle, grind the spices along with the mint into a fine powder. If using a small grinder, you may have to blend in batches.
Stir in the salts, chili powder, mango powder, and ground ginger, and thoroughly combine.
Ideally use a day after mixing up the chaat masala spice mix, which gives the spices time to get to know each other. This recipe yields about 3/4 of cup (86g) of chaat masala. Store in an airtight container for up to 2 months.