1. Prepare the ingredients, wash and chop the crispy bones into suitable size pieces.
2. Put seasoning 2, except for salt, into the pot and stir fry slowly over low heat to give the fragrance.
3. Add salt and stir fry until it tastes good, then leave only rice to become stir fried rice, cool it thoroughly and put it into a grinding bottle, and grind it as you eat it.
4. Put the crispy bone into the cooking bowl, add salt, soy sauce, cooking wine, oyster sauce and fried rice flour, mix and marinate for 30 minutes.
5. Peel the sweet potatoes, cut them into suitable sized blocks, and put them into the plate evenly.
6. Put the marinated crispy bone on the sweet potato, put it into the steamer and steam for 30 minutes.