After the skewers are cooked, sprinkle them with barbecue powder and continue to grill them for a while before eating. The specific method is as follows:

Ingredients that need to be prepared in advance include: 500g of mutton, appropriate amount of barbecue powder, appropriate amount of chili powder, appropriate amount of salt, appropriate amount of bamboo skewers, and appropriate amount of mutton fat.

1. Thread the marinated mutton pieces with bamboo skewers along the length to form mutton skewers.

2. Place the mutton skewers on the baking sheet and put them in the oven.

3. After baking for 10 minutes, take out the mutton skewers and carefully brush the mutton oil on the mutton pieces with a brush.

4. Flip the mutton skewers and sprinkle with barbecue powder and refined salt.

5. Sprinkle with chili powder and put it in the oven for another 10 minutes.