- STEP 1)Heat the oil in a frying pan and add the cumin seed. When the cumin seed starts to crack, add green peas, green chili, and ginger, and stir for a few seconds. STEP 2). Add the potatoes and all the spices (chili powder, mango powder, salt, cilantro) and stir-fry for a minute. Turn off the heat. STEP 3) Taste the mixture; it should be a little spicier than you like, as it will taste milder inside the bread. Set aside. STEP 4). Trim the edges of the bread slices and cut them into two pieces. Set aside. STEP 5) Roll 1½ tablespoons of the mixture at a time into an oval shape. Make twelve rolls. (The size of the potato rolls will depend on the size of the bread.) STEP 6)Fill a small bowl with water to wet the bread.Dip one side of a slice of the bread lightly in the water. Place the slice between your palms and press, squeezing out the excess