To the vegetable mixture, add chopped scallion white parts, cilantro, ginger garlic and green chillies. Mix together.
Sprinkle the flour and cornstarch. Add the black pepper powder and salt.
Mix gently without squeezing the mixture.If the mixture feels too dry, add about a tablespoon of water. Ideally, you shouldn’t need to, as the vegetables will release moisture due to salt.
Place 2 to 3 inches of oil in a frying pot to heat up over medium-high heat.
Shape the mixture into small lime-sized balls using your hands. Immediately proceed to deep fry.
Carefully add the balls to the hot oil. Make sure the oil is not too hot, or the inside of the balls will remain raw. If the oil is too cold, the balls may break apart or scatter.
Fry the balls, turning them on all sides, until they are golden to dark brown and evenly cooked on all sides. Drain on a paper towel.
Warm up the manchurian sauce that we prepared earlier. Pour two-thirds of the warm sauce into a serving bowl.
Arrange the warm deep-fried vegetable dumplings over the sauce in a single layer.
Pour the remaining sauce over the dumplings. Garnish with chopped scallion green parts or cilantro. Serve immediately!