Making The Best Japanese Beef Curry is easy if you follow these steps:

1. Brown the Beef: In a large pot, heat the vegetable oil over medium-high heat. Add the beef pieces and cook until browned on all sides. Remove and set aside.
2. Sauté the Aromatics: In the same pot, add the chopped onions and sauté until translucent. Stir in the minced garlic and ginger; cook until fragrant (about 1 minute).
3. Add Carrots and Potatoes: Toss in the sliced carrots and diced potatoes. Stir to combine, cooking for about 2-3 minutes.
4. Return the Beef: Place the browned beef back into the pot with the vegetables.
5. Pour in the Broth: Add the beef broth. Bring the mixture to a simmer, then reduce heat to low.
6. Stir in Seasoning: Add the grated apple, curry powder or roux, soy sauce, and Worcestershire sauce. Mix well until the curry is smooth.
7. Simmer: Cover the pot and let the curry simmer for about 40-50 minutes, or until the beef is tender and the veggies are cooked through.
8. Adjust Seasoning: Taste the curry and add salt and pepper as needed.
9. Serve: Once everything is well cooked, remove from heat.