1. Prepare raw materials: ribs, ginger, onion, cumin powder, Chili powder, black pepper powder, oyster sauce, soy sauce, salt, chicken essence, sugar and cooking wine.

2. Wash the ribs, put them in a basin, soak them for 1 hour, and remove the blood.

3. Wash the onion and cut it into sections. Peel ginger, wash and slice.

4. Put the right amount of Chili powder and cumin powder into a small bowl and mix well.

5. Soak the ribs, clean them, put them in a bowl, add the onion and ginger slices, and then add the marinade.

6. Add appropriate amount of oyster sauce, soy sauce, salt, chicken essence, sugar, cooking wine, grab it evenly by hand, cover it with plastic wrap, and put it in the refrigerator for more than 3 hours.

7. Spread tin foil on the baking tray and preheat the oven to 220 degrees.

8. Put the baking tray in the preheated oven and bake for 20 minutes.

9. Turn the ribs upside down, brush them with sauce, brush them and bake them in the oven for 20 minutes.