Preheat the air fryer: Set it to 350°F (175°C) for 3–5 minutes so the basket is warm and ready.

Prep the apples: Core and peel if you like, then slice into thin wedges (about 1/4-inch thick). Thinner slices cook more evenly.

Mix the filling: In a small bowl, combine brown sugar, cinnamon, a pinch of salt, and vanilla extract if using. Stir in the melted butter to form a sandy paste.

Unroll the crescent dough: Separate into 8 triangles on a clean surface. Pat them slightly larger with your fingers for easier rolling.

Assemble: Spread a small amount of the cinnamon-butter mixture on each triangle. Place 2–3 apple slices on the wide end of each triangle, overlapping slightly.

Roll it up: Roll from the wide end to the tip, tucking in the sides a bit so the apples stay snug. Place seam-side down.

Brush and top: Lightly brush the tops with a little melted butter. If you like, sprinkle a pinch of cinnamon sugar for extra crunch.

Air fry: Arrange in a single layer in the air fryer basket, leaving space between rolls. Cook at 350°F (175°C) for 8–10 minutes, or until deep golden brown and crisp. Work in batches if needed.

Check doneness: The dough should be fully cooked and not doughy in the center. Add 1–2 minutes if necessary.

Finish and serve: Let cool for 2–3 minutes. Dust with powdered sugar or drizzle with glaze or caramel if desired. Serve warm.