Clean the beef tendon thoroughly and blanch it in boiling water.
Place the tendon, water, and ginger in a pot and simmer thoroughly.
Once the tendon is tender, remove it and cut into bite-sized pieces.
Dice the onion, carrot, and potato.
Heat oil in a pan, sauté the onions, then add the carrots and potatoes and stir-fry.
Add the tendon and stir-fry together, then pour in water and bring to a boil.
Once all the ingredients are cooked, add curry powder and mix well.
Simmer over medium-low heat until the curry thickens.