Reference source: https://youtube.com/shorts/I9FnchdvrZA?si=kKE_f7Er1vp7rH4r
Thinly slice onion and mix with vinegar and allulose to prepare pickled onions.
In a pot, add water, rice noodle broth, anchovy fish sauce, and chicken stock; when the broth starts boiling, add soybean protein noodles.
Blanch for about 1 minute, then remove the noodles and cook frozen chuck roll (beef neck) in the broth until done.
In a bowl, place the soybean protein noodles, bean sprouts, chopped green onion, pickled onions, and beef, then pour the broth according to the bowl size.
Finish by topping with Cheongyang chili and red pepper to taste, and drizzle low-calorie sweet chili sauce over the pickled onions.