Prepare the Cheese Sauce:
In a saucepan, melt butter over medium heat. Add flour and whisk for about 1 minute to create a roux. Gradually pour in milk, whisking constantly until thickened.
Add Cheese:
Stir in cheddar cheese until melted and smooth. Season with salt, pepper, and paprika.
Combine with Macaroni:
Mix the sauce with the cooked macaroni until fully coated.
Chill the Mixture:
Spread the mac and cheese in a baking dish. Cover and refrigerate for at least 2 hours (or overnight) to firm up.
Form Balls:
Once chilled, scoop about 2 tablespoons of the mixture and roll into balls.
Coat:
Dip each ball into beaten eggs, then roll in breadcrumbs until fully covered. For extra crunch, repeat this step twice.
Air Fry:
Preheat the air fryer to 375°F (190°C). Spray the basket lightly with oil. Place balls in a single layer and cook for 8–10 minutes, flipping halfway through until golden brown and crispy.
Serve:
Let cool slightly, then serve hot with ranch, marinara, or spicy mayo.