Clean and wash the pork fillet, pat dry with kitchen paper, cut first into slices and then into strips. The pork fillet strips with dark soy sauce (1 tbsp), light soy sauce (1 tbsp), sweet soy sauce (1 tbsp), rice wine (1 tbsp), coarse sea salt from the mill (3 big pinches) and colored pepper from the mill (3 big pinches ) Marinate for about 20 minutes. Then put the marinated pork fillet strips in a kitchen sieve, drain the marinade well and collect it. Then mix the marinade with the delicacy broth (200 ml). Cut the Chinese cabbage leaf hearts into strips. Heat the wok, add peanut oil (1 tbsp), heat, add the pork fillet strips, fry vigorously / stir-fry and slide to the edge of the wok. Add the Chinese cabbage strips and sauté / stir-fry. Add Sambal Oelek (1 teaspoon) and stir-fry everything briefly. Deglaze / pour in the delicacy broth and marinade and simmer / cook for about 5 - 6 minutes. Finally, thicken with the tapioca starch (1 tbsp) dissolved in a little cold water.