In a large non-stick, deep-sided frying pan, heat 1 tablespoon oil over medium flame. Once hot, add 100 g red onion, 60 g carrot, and 3 cloves garlic to the pan, sautéing for a few minutes. Next, add ½ teaspoon turmeric powder and 1 tablespoon medium curry powder, stirring well — be careful this doesn't burn, and turn the heat down if you're worried.
Add 1 tablespoon gluten free plain flour and stir well. Next, add 400 ml water, 1 vegetable stock cube, 200 ml coconut milk, 1 ½ teaspoon tamari ***, 1 teaspoon sugar, and Sea salt (to taste). Let it cook, covered, until the vegetables soften, around 15 minutes. Turn off the heat and leave to cool.
Purée the paste until smooth, using an immersion blender. Pass it through a sieve and back into the pan. Set aside.
Make the tofu breading by crushing 50 g gluten free cornflakes until they resemble breadcrumbs. You can do this by adding them to a bag and bashing them with a rolling pin, or add them to a mixer-grinder.
Make the tofu katsu by whisking together 25 g cornflour, Sea salt (to taste), and 25 ml water to make a thick paste/batter. Cut 200 g extra firm tofu* into rectangular pieces, then coat each piece in the batter and dip in the cornflakes.
Fry the tofu katsu**. Heat 1 litre oil in a deep-fat fryer or large kadai/saucepan. When the temperature reaches 190℃ (375℉), it's ready — alternatively, if the oil bubbles around the tip of a wooden chopstick, it's heated enough. Carefully fry the tofu cutlets until golden and crispy, then drain on kitchen paper.
Heat the katsu curry sauce, then serve the sauce over the crispy tofu cutlets. Serve with your choice of accompaniments!
Notes
* My tofu is pre-pressed, but if yours isn't, use a tofu press before making this recipe. ** Please see below for instructions on how to air-fry or bake your tofu katsu:
How to make baked tofu katsu in the oven: Preheat your oven to 200 C (392 F). Line a baking tray with parchment paper and lay out your tofu katsu cutlets. Spray/drizzle with oil to get a nice crispy crust, and bake them for around 20 minutes, turning halfway through cooking.
How to make air-fryer tofu katsu: Spray your basket with neutral oil. Cook the tofu cutlets at 190 C (375 F) for around 15 minutes, turning halfway through cooking.
*** If you're not gluten-free, use ordinary plain flour. You can also swap tamari for dark soy sauce if tamari is hard to source.