Take roasted chana dal or whole gram
Remove any stones, husk, or impurities
Let the roasted gram cool completely
Grind it in a mixer or grinder to a fine powder
Sieve the powder to remove coarse particles
Grind the coarse particles again
Repeat sieving until the texture is fine
Store the sattu in an airtight container
Keep it in a cool, dry place
Use as needed for drinks, dough, or recipes