The day before you want to prepare your Katsu Curry, follow the steps in my tofu katsu recipe to prepare the tofu.
1 batch tofu katsu
Prepare the 80 grams mild green peppers, 80 grams red bell peppers, 150 grams kabocha, and 150 grams Japanese eggplant. You need to make sure they are very well dried after washing them, or they will spatter when you fry them. I recommend cutting slits about ⅛-inch apart into the skin side of the eggplant so it cooks through faster while keeping the skin from getting tough. This is also a good time to bread your katsu and prepare a cooling rack with a few sheets of paper towels.
80 grams red bell peppers, 150 grams kabocha, 150 grams Japanese eggplant, 80 grams mild green peppers
Whisk the 1 ½ cups vegetable stock, 2 tablespoons soy sauce, 2 tablespoons tomato paste, 2 tablespoon date syrup, 1 teaspoon cocoa powder, and 1 tablespoon potato starch together in a bowl until evenly combined.
1 ½ cups vegetable stock, 2 tablespoons soy sauce, 2 tablespoons tomato paste, 2 tablespoon date syrup, 1 teaspoon cocoa powder, 1 tablespoon potato starch
Roughly chop the 200 grams onion, 120 grams carrot, 15 grams garlic, and 15 grams ginger. Add them to a food processor blender and puree until smooth. You can also do this with the rasp side of a box grater or using a daikon grater.
200 grams onion, 120 grams carrot, 15 grams garlic, 15 grams ginger
Pour the pureed vegetable mixture into a frying pan(I recommend a non-stick pan) and stir in the ¼ teaspoon baking soda.
¼ teaspoon baking soda
Put the pan on the stove over medium-high heat and bring the mixture to a boil. Stir regularly and let the mixture cook until any extra liquid has evaporated and it starts to thicken into a paste (5-6 minutes).
Add the 2 tablespoons vegetable oil and then fry the paste until it's glossy and tan in color (another 5-6 minutes). This is a good time to start preheating a high-sided pot with about 1-inch of vegetable oil up to 340°F (170°C) to fry your katsu and vegetables.
2 tablespoons vegetable oil
Add the 14 grams Japanese curry powder into the pan with the caramelized vegetables and quickly stir them together to toast the spices.
14 grams Japanese curry powder
Pour the vegetable stock mixture into the pan and stir it in. Reduce the heat to maintain a gentle simmer and stir periodically.
Deep fry the vegetables one type at a time. The kabocha will take about 2-3 minutes. The peppers will take anywhere from 30 seconds to a minute, and you'll know they're done when the skin starts to bubble. Drain the vegetables on the prepared rack.
vegetable oil
For the eggplant, you want to add them into the oil skin-side down to prevent them from turning brown. Flip them over after 30 seconds and continue frying them for about another minute. Drain the eggplant cut-side down on the prepared cooling rack.
Fry the tofu katsu according to the recipe.
To plate your Katsu Curry, slice the tofu katsu and arrange it on a bed of cooked rice along with the fried vegetables. Pour the curry sauce over half of the katsu and vegetables and serve immediately while the katsu is still crisp.
2 servings cooked Japanese short-grain rice