Wash and soak Black Eyes pies overnight. Change water couple of times and pressure cook until soft.
Meanwhile, knead the flour with a pinch of salt, enough water to a soft pliable dough. Add the oil and continue kneading until you get a lose soft dough. Let it rest for 30 mins at least.
Once the pressure falls, drain the water and grind the peas to a smooth paste.
Add grated jaggery, fennel powder, cardamom powder, mix well. If the filling becomes watery, then roast the mix in a nonstick pan.
To make the poli, divide the dough and filling into equal balls.
Flatten the dough and place the filling and cover on all sides.
Add oil and roll into 6 inch disc.
Heat a tawa and cook this poli on both sides.
Serve hot.