How to make black sauce for old Beijing braised pork rolls?

1, add boiling water to the flour (it is better not to pour boiling water at one time because of regional and weather differences) and stir it into a floccule;

2. Add salad oil and knead into smooth dough;

3. Half an hour after waking up, divide the dough into two small pieces and flatten them;

4. Brush salad oil on the surface of dough, and two pieces of dough are superimposed;

5. Roll the circle with a rolling pin;

6. Brush the oil in the pan and put the pancakes. Fry until golden. Turn it over and fry two pieces of bread until the cake is golden on both sides.

7. Brush Chili sauce (sweet noodle sauce with personal taste) and sprinkle Chili powder;

8. Release vegetables and add chopped braised eggs and braised pork.

Ingredients: braised pork, 1 braised eggs, 75g flour, 39g boiled water, 5g salad oil, a little lettuce, Chili sauce (or your favorite sauce) and Chili powder.