Cook Macaroni: Cook the elbow macaroni according to package directions until al dente. Drain and set aside.
Combine Cheese Mixture: In a large bowl, combine shredded cheddar cheese, dry mustard, salt, black pepper, and garlic powder.

Combine Macaroni and Cheese: Add the cooked macaroni to the cheese mixture and stir until the macaroni is evenly coated.
Add Milk and Cream: Gradually pour in the milk and heavy cream, stirring continuously to combine.
Preheat Air Fryer: Preheat the air fryer to 375°F (190°C).
Transfer to Dish: Transfer the macaroni and cheese mixture to an oven-safe dish or baking pan that fits in the air fryer basket.
Top with Cheese: Sprinkle additional shredded cheddar cheese on top.
Air Fry: Place the dish in the air fryer basket and cook for 10-12 minutes, or until the cheese is bubbly and golden brown.
Cool and Serve: Remove from the air fryer, let cool slightly, and then serve.
Enjoy this delicious and easy-to-make air fryer macaroni and cheese!