Preheat your air fryer to 360°F (182°C). This will ensure that it's hot and ready when you place the bratwurst inside.

If desired, lightly brush or spray the bratwurst with a small amount of cooking oil. This can help enhance the crispiness of the bratwurst, but it's optional.

Place the bratwurst sausages in the air fryer basket. Make sure they are not touching each other to allow for proper air circulation.

Cook the bratwurst in the preheated air fryer for about 10-15 minutes, turning them halfway through the cooking time. The exact cooking time may vary depending on the thickness of the sausages and your air fryer model.

While the bratwurst are cooking, you can also place the buns in the air fryer for the last 2-3 minutes to warm them up and slightly toast them.

Once the bratwurst are cooked to your desired level of crispiness and the buns are warmed, carefully remove them from the air fryer.

Assemble your bratwurst sandwiches by placing the cooked sausages in the warmed buns and adding your preferred toppings and condiments.

Serve your air-fried bratwurst sandwiches hot and enjoy!