Paneer Manchurian (Restaurant Style Recipe)

Name: Paneer Manchurian (Restaurant Style Recipe)
Prep time: 5 min
Cook time: 25 min
Total time: 30 min
Cuisine: Asian
Ingredients: 250 grams Paneer ((cottage cheese) or 8 to 9 ounces paneer); 2 tablespoon corn starch (or corn flour); ½ teaspoon black pepper powder (or white pepper); ½ teaspoon red chilli powder (or ¼ teaspoon cayenne pepper); ½ teaspoon sugar ((optional)); ½ teaspoon salt (or add as required); 3 tablespoon oil; 1.5 to 2 tablespoon tomato ketchup; ½ tablespoon soy sauce (or add as required); ¼ teaspoon black pepper powder (or white pepper); ½ teaspoon rice vinegar (or apple cider or regular vinegar); ½ teaspoon red chilli powder (or ¼ teaspoon cayenne pepper); ¼ cup water; ⅓ cup onions or spring onion whites diced (into 1 inch squares); ½ cup capsicum diced into 1 inch squares. (any color capsicum - red, green or yellow (bell peppers)); 1 teaspoon finely chopped ginger; 1 teaspoon finely chopped garlic; 1 teaspoon finely chopped green chilies; 1 to 2 teaspoon finely chopped celery (- optional); salt as required