Main ingredients:Pork belly，Rice flourFlour,Sweet potato，Ginger，Soy sauce, Salt,Sichuan peppercornsOil, a little from PixianDoubanjiang (fermented broad bean and chili paste)Chicken essence，Sugar.Steps:

1, Cut the pork belly into slices, not too thin, cut the sweet potatoes into chunks, and ginger into small pieces, set aside.
2, Place the sliced pork in a large container, add ginger pieces, soy sauce, salt, Sichuan peppercorn oil, Doubanjiang, chicken essence, sugar, mix well, taste test to adjust. Then mix in the rice flour and wheat flour (I bought 200 grams per package, which can season 1000 grams of meat), ensuring each piece of pork is coated evenly with the mixture. If it's a bit dry, add some oil and water as needed for mixing. Let it marinate for ten minutes.
3, Coat the sweet potato chunks with rice flour and wheat flour (not too much), and slightly more sugar if necessary since German sweet potatoes are not very sweet.
4, Use a large bowl to place the pork slices at the bottom, and arrange the sweet potato chunks on top. Put this in the pot.
20|Steam for about two hours over medium heat. When done, invert it onto a plate and sprinkle with chopped scallions or cilantro before serving.Steam, using medium heat for about two hours. Remove from steam and invert onto a plate, garnish with chopped green onions or cilantro.,, and it is ready to serve.