In a small bowl, whisk together the maple syrup, soy sauce, Dijon mustard, minced garlic, and olive oil until well combined. This will be your sticky, flavorful glaze.

Pat the salmon fillets dry with paper towels and lightly season both sides with salt and pepper. This helps the glaze adhere better and draws out moisture for perfect cooking.

Brush or spoon the glaze generously over each fillet, making sure to coat the tops and sides. Let the salmon sit for about 5 minutes to absorb the flavors.

Preheat your air fryer to 400°F (200°C). Lightly grease the basket to prevent sticking. Place the salmon skin-side down in the air fryer basket in a single layer. Cook for 7–9 minutes, depending on thickness, until the salmon is cooked through and flakes easily with a fork. The glaze should be bubbling and slightly caramelized.

Carefully remove the salmon from the air fryer and serve immediately. It pairs beautifully with steamed veggies, rice, or a light salad.