The Easy Way to make black salt.
1. Fill a tea cup or a shot glass, nothing too big, with salt.
2. Stick your stick incense in the salt. Straight up. Or put your cone incense on top.
3. Burn your incense. Let the ashes fall in the salt.
4. Stir the ashes into the salt after every stick or cone.
The resulting salt is technically brown. But works just the same and smells so good.