Add the cornflour, salt, pepper, and white pepper.
6 tbsp cornflour, 1/2 tsp salt, 1/2 tsp black pepper, 1/4 tsp white pepper
Toss together to coat the chicken. It will be a sticky mixture.
Heat 3 tbsp of the oil in a large frying pan (skillet) or wok over a high heat until very hot.
4 tbsp oil
You will probably need to work in two batches, so when the oil is hot, add in half the chicken - a piece at a time - and spread it out.
Fry the chicken until golden and crispy. Try not to move the meat around too much as this reduces the amount of crispiness you get. It generally takes about 5 or 6 minutes to crisp up the chicken with about 3 or 4 stirs during that time.
Using a slotted spoon or tongs, remove the chicken from the pan and place in a bowl. Put to one side.
Add a further tablespoon of oil and repeat - cooking the second batch of chicken and then placing in the bowl with the first batch.
Once you’ve removed all the chicken from the pan, add the remaining ½ tbsp of oil to the pan and turn the heat down to medium.
1/2 tbsp oil
Add in the sliced onion and cook for 2 minutes until slightly softened.
1 medium onion
Add in the finely chopped chilli, minced ginger, and minced cloves of garlic and cook whilst stirring for 30 seconds.
1 red chilli, 1 tsp minced ginger, 3 garlic cloves
Add the rice vinegar, soy sauce, tomato puree, sugar, tomato ketchup, and sweet chilli sauce to the pan.
Stir it all together and turn up the heat and let it bubble for a couple of minutes until the sauce starts to reduce a little.
Add the chicken back in, give it a stir and heat through for 1-2 minutes – until the chicken is hot.
Serve with rice or noodles.
Video
Notes
Can I freeze it or make it ahead?
This recipe works best when made and served right away. Freezing/chilling then reheating means the chicken won't be crispy. However, it does still taste really good. So if you did want to freeze it, then cool, cover and freeze. Defrost overnight in the refrigerator and reheat thoroughly in the wok or a microwave until piping hot throughout. You can add a splash of water if it's a little dry.Ingredient swaps/additionsSwap out the chicken thighs for breast if you prefer. If you want to make a beef/steak version, use my crispy chilli beef recipe. Add thinly sliced bell peppers, mange tout, snap peas or small pieces of chopped broccoli, if you want to add some vegetables. Add them as the same time as the onion.Cooking for 2?You can halve most of the ingredients, but will need to make a couple of adjustments:
Egg - lightly whisk the egg and discard half of it before adding to the chicken.
Use 1 small onion (or half a medium onion)
Use a small red chilli (or half of a regular one)
Cook as per the regular instructions, but you will be able to cook the chicken in one batch, instead of two.Nutritional information is per serving and doesn't include rice or garnishes