Can I make Japanese curry vegan using a premade roux?

Yes you can! There is one premade curry roux called Golden Curry that's vegan.

Is premade curry roux gluten-free?

Unfortunately, from my knowledge, all Japanese brands contain wheat.

Japanese Curry in a Hurry

Name: Japanese Curry in a Hurry
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Japanese
Ingredients: 2 tablespoons vegetable oil; 1 pound stewing beef or beef chuck, chopped bite size; 1 medium onion, finely chopped; 1 thumb size ginger, peeled and grated; 1 small red apple, peeled, cored, and finely chopped or grated; 2 large carrots, peeled and chopped bite size; 1 large potato, peeled and chopped bite size; 1300 ml water; 1 box Japanese curry roux such as Vermont Curry or Java Curry; 1 tablespoon oyster sauce

Ingredients

Units Scale

2 tablespoons vegetable oil
1 pound stewing beef or beef chuck, chopped bite size
1 medium onion, finely chopped
1 thumb size ginger, peeled and grated
1 small red apple, peeled, cored, and finely chopped or grated
2 large carrots, peeled and chopped bite size
1 large potato, peeled and chopped bite size
1300 ml water
1 box Japanese curry roux such as Vermont Curry or Java Curry
1 tablespoon oyster sauce

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Instructions

Start by adding 1 tablespoon of vegetable oil to a medium size pot over medium high heat.
When the oil is hot, add the beef and saute until it’s cooked through. Transfer the beef to a plate and set aside.
Add the remaining 1 tablespoon of oil to the pot along with the onion, ginger, and apple. Cook for about 2 minutes, until the onions are translucent.
Return the beef to the pot and add the carrots, potato, and water. Bring the water to boil and turn the heat down to a simmer. Cook uncovered for 15 minutes.
Add the curry roux and oyster sauce and stir until all the pieces have dissolved. Turn the heat to low and simmer for 5 minutes.
Serve with Japanese white or brown rice. You can also offer ichimi togarashi (Japanese chili flake) and fukinjinzuke (Japanese relish) as seasoning and topping options, on the side.

Notes

To reheat from the freezer: Put the frozen curry container in the fridge and leave it overnight. Microwave on high, with the lid on, for 2 to 3 minutes, or until hot. Or, put the curry in a pot over medium and reheat until hot.