Add a small pinch of salt and ground pepper in minced beef or pork. Mix well and set aside.
Blanch tofu in water
Cut tofu into square cubes (around 2cms). Bring a large amount of water to a boil and then add a pinch of salt. Slide the tofu in and cook for 1 minute. Move out and drain. This helps to remove the raw soy flavor form tofu.
Get the "mapo" flavor
Get a wok and heat up around 2 tablespoons of oil, fry the minced meat until crispy. Transfer out and leave the oil in.
Add another 1 tablespoon of vegetable cooking oil and fry doubanjiang for 1 minute over slow fire until the red turns red (bring us a lovely red color dish) and add fermented black beans, garlic, scallion white and ginger, cook for 30 seconds until aroma. Optionally mix pepper flakes in. Pepper flakes should be added at the end because it contains little water and can be burnt easily.
Pour in water or stock. Add light soy sauce, sugar and half of the cooked beef (providing more flavors to the soup) after the broth boils and let it continue simmering for 2-3 minutes. Place the tofu in, simmer for another 6-8 minutes. The longer time of simmering helps the tofu to absorb the flavors.
Prepare the starch water and thicken the sauce
During the process of simmering, mix 1 tablespoon of cornstarch with 2.5 tablespoons of water in a small bowl to make water starch. Stir the water starch and then pour half of the mixture to the simmering pot. Back push and wait for around 30 seconds and then pour the other half. You can slightly taste the tofu and add pinch of salt if not salty enough. Add cooked beef to creates some crispy texture and then drizzle sesame oil. Mix well.
Add a numbing feeling and serve!
Transfer out when almost all the seasonings stick to tofu cubes. Sprinkle Szechuan peppercorn powder (to taste)and chopped garlic greens if using.