Take a mixing bowl and add all-purpose flour, black pepper crushed, 2 tablespoons of cornflour and salt. (Save rest of cornflour for sauce preparation. ) Add some water and mix them well to form a thick paste. Paste should be in pouring consistency. (refer pics)
Now take a frying pan and add oil to deep fry paneer cubes, heat it on medium flame. Then, dip paneer pieces in the batter, coat them properly and fry them in a pan till they become golden brown in color. Transfer them to a paper towel. Keep them aside.
Chop the veggies capsicum, onion, garlic, green chillies, celery and ginger.
Take 2 tbsp of oil in a pan and heat it over high flame. Add onion, garlic,celery,green chilies and capsicum, stir well and cook them until they get half-cooked.
Then add sugar, pepper, all the sauces, vinegar, salt and 4 teaspoon water, stir well and cook on medium heat for 1 minute. Do not add too much salt as soya sauce contains it's own salt.
Prepare cornflour paste. Add 2 tablespoon of cornflour in 4 tablespoon of water.
Add paneer pieces to the pan and stir well, put the heat to low and cook for 3-4 mins, stirring well until they become piping hot. Then, turn off the heat and serve immediately. Serve Chilli Paneer with Gravy hot with noodles or fried rice.
TIPS
You can also make this dish Vegan by substituting Paneer (Indian Cottage Cheese) with tofu.
Sauce making is done on high flame so be fast and carefull else it will catch fire.
Do not skip the celery because it's a important ingredient which helps us to bring restaurant style taste in your chilli paneer dish.
If you want to make dry version of chili paneer skip the addition of water and cornflour paste.
If you are not going to serve it immediately, don't add paneer cubes else they will become soggy. Mix them just before serving.