Description - Step 2
Prepare Onion Filling
Start by heating 2 tablespoons of oil in a pan. Add fennel, cumin, nigella, and mustard seeds. After a brief sauté, add the finely chopped onions and green chillies. Let the onions soften in the pan. After 2 minutes, stir in the besan. Add masalas like cumin, turmeric, chopped coriander, amchur, garam masala, salt, and powdered chillies. Mix well. Toss everything together and cook until it is completely dry. Let it cool.