Wash and prepare your chicken.
In a large pot heat your oil on a medium/high heat. Add the chopped onions and fry them until they become translucent. Add your chicken pieces, followed by all the seasoning; and stir well making sure each piece is fully coated with seasoning. Fry the chicken pieces until they are browned on the outside.
Now add boiling water to the chicken, place the lid over the pot and boil until the chicken becomes soft and cooks through, about 1 hour. If the water runs low and the chicken is not yet soft, add some more water and boil further.
Once the chicken is soft enough, and the water has evaporated, add the tomato paste, and mix well, then add tinned tomatoes, stir well and allow the chicken and tomatoes to cook for a further 10 mins. Add salt and pepper to taste.