Cut potatoes, carrots, onions, and pork into bite-sized pieces.
Heat cooking oil in a pan and stir-fry the pork.
When the pork is cooked, add potatoes, carrots, and onions and stir-fry together.
When the ingredients are partially cooked, add water and bring to a boil.
Once the vegetables are cooked, add curry powder and stir well.
Simmer over low heat until the curry thickens.
Serve the finished curry over rice.