Turn on the oven to 120 degrees celcius to heat.
To a pan that can be used on the stove top and in the oven, add the oil and spices and heat until the oil melts and the spices are fragrant
Stir and add the pork, rolling to coat and brown on each side
Add the tomato and water and bring to a simmer
Add to the oven and cook for 5 hours at 120 degrees celcius
Check periodically to ensure that water remains in the dish, add more water if necesssary
When pieces of meat come away from the main piece of meat when pulled remove from the oven and set aside to cool for 5-10 minutes
Using tongs or two forks, pull apart the meat, shredding it into small pieces
Add the meat to a bowl and serve with sides of your choice