Cut pork leg and vegetables into bite-sized pieces.
Heat oil in a pan and stir-fry the pork leg.
When the meat is cooked, add onion, potato, and carrot and stir-fry together.
Once the ingredients are halfway cooked, add water and bring to a boil.
When everything is fully cooked, add curry powder and stir well while simmering.
When it thickens, turn off the heat and serve the finished curry in a bowl.