Cut onion, potato, carrot, and pork into bite-sized pieces.
Heat cooking oil in a pan and stir-fry the pork.
When the pork is halfway cooked, add onion, potato, and carrot, then stir-fry together.
Pour in 300ml of water and boil until the ingredients are cooked.
Add curry powder, dissolve well, and simmer on low heat.
Serve the finished curry over rice.