Add all the ingredients into a bowl. Mix to combine all the ingredients, being careful to mix just enough to bring them together.
Deep fry on medium high in hot oil for 4-5 minutes or until golden brown.
Heat oil in a wok. Add chopped garlic and ginger and sauté until fragrant.
Add celery, onions and green chilli and sauté for 1 - 2 minutes on high flame.
Add water/stock, soy sauce, vinegar and salt. Mix well to combine. Allow to simmer.
Combine corn flour and water in a small bowl and add it to the wok. Stir continuously to ensure the sauce does not become lumpy. Simmer till the sauce thickens and has a glossy look
Once thickened, add the fried vegetable balls and stir to combine.
Add chopped coriander, spring onion greens and whites.
Serve hot along with fried rice or hakka noodles.