Cut the potatoes, carrots, and onions into cubes.
Cut the beef into bite-sized pieces.
Heat oil in a pan and stir-fry the beef.
Add the potatoes, carrots, and onions, and stir-fry together.
Add 300ml of water and bring to a boil.
Once the ingredients are cooked, lower the heat and add curry blocks, stirring until dissolved.
Simmer over low heat, stirring constantly, until thickened.
Serve the curry with rice on a plate.