I've been making curry with roux for longer than I can remember, and this post is my life's research. I want to share some tips on how to make the ULTIMATE Japanese-style curry using roux. Bring your homemade curry to the restaurant level with these tips!
Thinly slice 300 g yellow onion. (The thinner the slices, the quicker they'll cook.) If you don't want to caramelize the onion, skip these steps and fry it later in the pot with the butter before adding the garlic and meat.
Peel 200 g potato and 150 g carrot, and cut them into large pieces, slightly bigger than bitesize. (Try not to cut them too small otherwise they will fall apart during the cooking process.) Cut 300 g beef into bite size pieces.