Cut the beef brisket into bite-sized pieces.
Dice the onion, potato, and carrot.
Heat cooking oil in a pan and stir-fry the beef brisket.
Add the onion, potato, and carrot to the pan and continue stir-frying.
Pour in water and add curry powder (or curry cubes).
Simmer over medium heat until the ingredients are cooked through.
Season with salt and pepper to taste.
Serve the finished curry in a bowl.