Chicken Balti

2 chicken breasts, cubed
2 tbsp vegetable oil
1 onion, finely chopped
2 heaped tbsp balti paste
200g chopped tomatoes
Water

Preheat the oil in a saucepan, add the onions and cook for about 10 minutes at a low heat until the onions are softened. Add the balti paste and cook for another two minutes. Increase the heat and add the chicken breasts, stirring until the chicken is sealed. Add the chopped tomatoes and enough water to form a sauce. Cook for another 20 minutes, stirring occasionally, until the chicken is cooked. Serve with rice and naan bread.