Boil chicken along with salt, 1/2 tsp black pepper powder, mustard powder and 1tsp soy sauce.Add water, so that chicken is cooked and water dries.

Shred chicken and add mayonnaise, cheese, black pepper powder and salt if need. Mix well.

Cut sides of bread slices. Set a side. Take a bowl, add eggs, Pinch salt, remaining soy sauce, vinegar and pinch black pepper powder. Beat well and add 1 glass of water.

Take each slice, dip it with egg batter, press to squeeze extra water, put chicken filling in the center of the slice, bind with all 4 sides of slice. Shape like a ball and roll into bred crumbs.

Crumb all cheese balls, freeze it or fry it. Before frying, put into fridge for some time.