1. Put all the dough materials except butter in the bread bucket, put the salt and sugar diagonally, put the yeast on the top, start the bread machine and start kneading the dough
2. After kneading for half an hour, add the pre-softened butter
3. Continue to knead the dough for another half an hour to reach the film state, the whole process of kneading for a total of one hour
4. Prove directly in the bread bucket to 2.5 times the original size, start the bread machine again to knead the dough for 5 minutes to vent the dough
5. Knead the dough after venting and cover with cling film to relax for 20 minutes
6. Roll the dough into pieces about the size of the baking pan and place it in the baking pan. Fermented again to double its original size
7. Use a fork to pierce some small eyes on the top, brush the egg mixture and sprinkle with chopped green onion and sesame seeds. Preheat the oven at 180 degrees and bake the middle layer for 15 minutes
8. Bake until the surface of the bread slices are colored and out of the oven to let cool. Cover the surface of the slice of bread with a layer of plastic wrap, the bread will be softer and easier to roll after cooling.
9. Use a knife to lightly cut the side of the cold bread slices without green onion, taking care not to cut through, and then spread the salad dressing and sprinkle the pork floss.
10. You can use a rolling pin to gently roll the bread up like a cake roll, and leave it for more than ten minutes. After cutting the roll, apply salad dressing and dipped meat floss on both ends, and then you can eat it.
