Cook the porkHeat a little neutral oil in a large pan over medium heat. Add the ground pork and season with a pinch of salt and black pepper. Pan fry until browned and add the minced garlic and sliced green onions, and diced onions. Stir and cook for about 1 minute until fragrant and softened.
Add sauces and seasoning:Add the soy sauce, doubanjiang (spicy bean paste), cooking wine and oyster sauce to the pan and stir for about 1 minute. This helps release its oils and deepens the flavor of the sauce.
Finish the pork:Pour in water to deglaze the pan, scraping up any browned bits. Let it simmer for 5 minutes. Remove from the heat and set aside.
Make the creamy tofu sauce:Add the silken tofu, sesame oil, and a pinch of salt to a blender. Blend until completely smooth and creamy. If it is too thick, add 1-2 tablespoonful of water to loosen it. It should become a semi-runny state. Set aside.
Cook the udon noodles:Bring a pot of water to a boil and cook the frozen udon according to the package instructions, usually about 1–2 minutes. Drain well.
Assemble the bowls:Divide the cooked udon between serving bowls. Spoon the spicy pork over the noodles, then pour the creamy tofu sauce over the top.
Garnish and serve:Finish with sliced green onions and chili oil. If you like it extra spicy, add a sprinkle of ground Sichuan peppercorn for extra numbing spice. Mix everything together before eating so the creamy tofu sauce coats every strand of udon. Serve immediately while hot.