1. Put all the ingredients except butter in the stainless steel bowl in the order of liquid first, powder second and yeast on the top layer
2. Knead after oil method to expansion stage
3. Check the state of the dough, just pull out the film, cover with plastic wrap and ferment to double the size
4. The fermented dough is taken out and vented, and the plastic wrap is rounded and left for 10 minutes
5. Take one of them and roll it out
6. Roll up from one end
7. Put it in a mold for secondary fermentation. After the fermentation is complete, preheat the oven up and down at 180°, and put it in the oven for about 20 minutes. If the color is too dark, you need to cover it with tin foil
8. Cut in the middle, don't cut
9. Add the washed lettuce and ham, and squeeze the tomato sauce
10. Finished product
11. Finished product
12. Finished product
