1. ready.
2. Cut off the edges, don't lose, and compact with a rolling pin.
3. Cut four knives, don't cut in the middle.
4. Put in the hamburger and medium.
5. Add purple sweet potato to condensed milk.
6. Press it into puree and preheat the oven 180 degrees.
7. Put it into the toast.
8. Add mozzarella cheese.
9. Dice the toast side and put in the purple potato diced.
10. Add mozzarella cheese.
11. Put it in the middle of the oven, 180 degrees, about 20 minutes, bake until the surface is golden, pay attention to stay.
12. It's crispy on the outside and soft on the inside.
13. The thick purple sweet potato taste and beautiful.
14. good to eat.
