Press the tofu for around 20 minutes to extract as much water as possible. You can use a tofu press or wrap the tofu in a clean towel and press it between 2 plates by securely placing something heavy on top.
400 g extra-firm tofu
In the meantime, make the sauce: Mix the cornflour with 2 tablespoons of water to make a slurry and set aside. In a small bowl, mix together the light soy sauce, dark soy sauce, rice vinegar, hoisin sauce, sugar, sesame oil, cornflour slurry, and water. Set aside.
2 tsp cornflour, 2 Tbsp light soy sauce, 1 Tbsp dark soy sauce, 1 Tbsp rice vinegar, 1 Tbsp hoisin sauce, 1 Tbsp sugar, 1 tsp sesame oil, 80 ml water
Once you have pressed the tofu, discard the extra liquid and cut the tofu block in 1.5cm [¼ inch] dice.
Place the tofu dice in a bowl and toss gently in the soy sauce.
2 Tbsp light soy sauce
Then toss the tofu gently in the cornflour until the tofu dice are covered all-over.
4 Tbsp cornflour
Heat the vegetable oil in a large frying pan or wok over medium-high heat.
2 Tbsp vegetable oil
Add the red chillies and cook for 30 seconds making sure not to burn them. Remove the red chillies from the pan and set aside.
4 whole dried red chillies
Add the tofu to the pan and fry until golden.
2 garlic cloves, 1 tsp grated ginger
Add the red pepper, green pepper, garlic, ginger, and red chillies to the pan and cook until the pepper start to soften.
1 small red pepper, 1 small green pepper
Add the sauce. Bring to simmer and, stirring often, cook until the sauce thickens.
Stir in the spring onions and peanuts, and cook for 30 seconds or so.
4 spring onions, 70 g peanuts
Serve straightaway with cooked rice on the side.
cooked rice