Take all the ingredients for making the batter in a bowl.
Ingredients for batter are –
1 cup all purpose flour/maida, 3 tbsp cornflour, 1 tsp ginger garlic paste, ½ tsp black pepper powder or freshly crushed black pepper, 1 tsp soya sauce and salt & sugar as required
2: Add ¾ cup water and make a smooth batter. not too thick nor too thin.
3: Rinse, wipe and halve the mushrooms (200-250 gms button mushrooms).
4: Dip the mushroom in the batter.
5: Heat oil for shallow frying or deep frying. once the oil is moderately hot, then deep or shallow fry the mushrooms.
6: Once the mushrooms are golden browned, remove and keep them aside.
7: Heat oil in another pan or remove the extra oil from the pan in which we fried the mushrooms. add spring onions and stir fry them for a minute.
8: Add 2-3 chopped green chilies, 1 tsp finely chopped celery, 2 tsp garlic, 2 tsp ginger and some of the spring onion greens. stir fry for a minute.
9: Add bell pepper/capsicum (1 medium size green sliced, diced or chopped).
10: Stir fry till the capsicum gets cooked a little but still retains its crunchiness.
11: Finally add salt, sugar, 1 tbsp soy sauce and ½ tsp black pepper powder or crushed black pepper
12: Stir fry and mix well.
13: Add the fried mushrooms.
14: Stir fry and mix well so that the sauce coats the mushrooms.
15: Remove and serve mushroom manchurian hot garnished with some spring onion greens and/or celery…. enjoy 
