Cut the potatoes, carrots, onions, and chicken into bite-sized pieces.
Add cooking oil to a pan and stir-fry the chicken.
Add potatoes, carrots, and onions, and stir-fry together.
When the ingredients are cooked, pour in water and bring to a boil.
Add curry powder and stir well.
Simmer on medium-low heat for 10 minutes.
Serve the finished curry over rice.