Preheat the air fryer to 350°F (175°C) for 2–3 minutes. If your model heats quickly, 2 minutes is enough.
Preheating helps the toast crisp evenly.
Place the frozen slices in a single layer in the basket. Do not thaw. Leave a little space between each piece for airflow.
Cook for 4–6 minutes at 350°F (175°C).
Start checking at 4 minutes. Thicker “Texas toast” may take closer to 6–7 minutes.
Flip only if needed. If the tops brown too fast, flip at the 3–4 minute mark. Many brands don’t require flipping, but it can help with even color.
For cheesy toast: In the last 1–2 minutes, sprinkle mozzarella or Parmesan on top and continue cooking until melted and lightly browned.
Serve right away. Add fresh parsley or a pinch of red pepper flakes.
Pair with marinara for dipping.