Preheat the air fryer: Set to 375°F (190°C). Preheating helps the bacon start crisping right away and prevents sticking.

Prep the basket: Lightly spray the basket with nonstick spray, or line it with parchment designed for air fryers. Don’t block airflow—use perforated parchment if you have it.

Mix the coating: In a small bowl, combine brown sugar, black pepper, smoked paprika, and cayenne. If using, whisk in Dijon and maple syrup or honey until it forms a thick, sandy paste.

Coat the bacon: Lay each bacon strip on a sheet of parchment or a cutting board. Rub the sugar-spice mixture onto one side, pressing lightly so it adheres. Flip and repeat. Coat evenly for the best caramelization.

Arrange in the basket: Place bacon in a single layer with a little space between pieces. Cook in batches if needed. Crowding leads to uneven cooking.

Air fry the bacon: Cook for 7–9 minutes, then check. Rotate the basket and flip the slices. Continue cooking 3–6 minutes, or until the bacon is browned, glossy, and crisp at the edges. Total time is usually 10–15 minutes depending on thickness and your air fryer model.

Let it set: Transfer bacon to a wire rack set over a baking sheet or a plate lined with parchment. Let it cool 5 minutes. This helps the sugar set into a shiny, “million dollar” crust.

Serve: Enjoy warm as-is, crumble over dishes, or cool completely and store for later.