1. Chop the ham, add half a teaspoon of salt to the egg, and beat a little black pepper.
2. Cut the steamed bun with three horizontal cuts and three vertical cuts, but not cut off.
3. Add an appropriate amount of mozzarella to the slits of the cut buns, and then add the ham cubes. Use the egg liquid prepared before to evenly spread on the surface and the gaps of the buns.
4. Put it in the middle of the preheated oven at 175° for about 10 minutes and it will be ok!
5. Let's eat the finished product!
Tips:Using this method to process leftover steamed buns, the outside is charred and tender on the inside, as well as the aroma of cheese and ham, which is very layered.
