2. Set the air fryer to a suitable temperature, which is about 180 degrees Celsius.

3. Set a good time, for example, 5 to 8 minutes is enough to make the pine nuts brittle.

4. In the process of cooking, take out the basket every 1-2 minutes and shake it gently to make the pine nuts evenly heated.

5. When the pine nuts begin to burst and the shell of the pine nuts begins to crack in the basket, it means that the pine nuts have begun to open.