In a separate mixing bowl, add all the ingredients for the litti filling and mix well. Check for taste—it should be piquant and pungent with a touch of sweetness.
Adjust any of the ingredient quantities to suit your tastes.
The lime juice and mustard oil should be sufficient to bring the mixture together, but if they’re not, either add more mustard oil or sprinkle just barely enough water to pull the mass together. It needs to be “hydrated” enough to hold little balls of filling together.
Divide the litti filling into lime-sized balls. Set aside on a plate.
Now separate the dough into the same number of fillings that you have. Roll between your palms into dough balls and set aside, covered, while you roll and stuff the dough.
Prepare a rolling surface by sprinkling it with a little flour. Roll each dough ball into a round a bit larger than a jam jar bottle cap.
Place a litti filling in the middle, fold the dough over it, into a draw-string pouch like shape, and pinch off the excess dough at the top—set that aside for some other use.
Roll the covered litti well to seal and smoothen its surface, and set it aside, too, covered with a moist tea towel to keep it from drying out.
Repeat this process with all the other doughballs and litti fillings.
Now pre-heat an oven to 325F/160F and place a tray in the center.
Assemble all the littis in a baking tray and brush them liberally with ghee. Bake for about 20-25 minutes or until browning. Pause mid-way to turn the littis over so they brown somewhat evenly on all sides.
You may, if you wish, also take the littis out of the oven early and finish the cooking on a stovetop tava where you have finer control of cooking and browning, though you may need the help of a bit more brushed-on ghee.
Baking the littis on an outdoor chulha is of course the option that produces the most flavorful results, but it will take patience and much care, so plan for it if you wish.