Reheat Garlic Bread in an Air Fryer

Doneness

The cut face is glossy amber with re-melted garlic butter — not scorched brown. Parsley flecks stay bright green, not grey. The underside has a light bronze from grate contact, which is correct. Picked up by one end, the slice holds its shape with a slight crisp snap — it should neither flop (under-warmed) nor crack brittle (over-cooked). Slicing through the centre releases a few wisps of steam.

Technique

Place slices cut-side up on the basket grate. Do not preheat. Wrap each slice loosely in a square of heavy-duty foil (cut-side still facing up under the foil) and cook 2 minutes — the steam brings the centre crumb back to warm and pliable. At 2 minutes, open the basket, unwrap each slice with tongs, discard the foil, and return the slices cut-side up for the final 2 minutes to re-crisp the garlic-butter surface. No oil — the original butter and olive oil on the bread is sufficient. Cheese-topped garlic bread: skip the foil wrap entirely and cook 4 minutes uncovered — the cheese acts as a moisture barrier. Texas-toast slabs (¾-inch thick): foil-wrap 2.5 minutes, uncover 2.5 minutes, for 5 minutes total. Breadstick-form: foil-wrap 1.5 minutes, uncover 1.5 minutes, for 3 minutes total. Crumbled pieces for croutons: 2 minutes uncovered with a shake at 1 minute.

Watch out for

• !Use the two-stage foil-wrap profile for standard slices. Starting uncovered at 350 °F scorches the garlic-butter surface within 60 seconds before the centre crumb re-warms. Foil-wrapping the entire cook leaves the surface soft with no re-crisp. The exception is cheese-topped bread — the melted cheese protects the surface, so skip the foil and cook 4 minutes uncovered.
• !Load cut-side up. Cut-side down causes the garlic-butter surface to scorch from direct grate contact within 90 seconds. The convection air browns the surface evenly from above; the crust on the bottom develops a mild bronze tone from the grate, which is the intended result.
• !Do not exceed 360 °F. Raw garlic and fresh parsley scorch to bitter grey above this temperature within 60 seconds. Stay at 350 °F for all variants. If your fryer runs hot, drop to 340 °F and add 1 minute.
• !Do not add oil spray. The original garlic-butter blend already coats the surface with enough fat. Extra oil pools on the basket floor and scorches to a bitter aroma. If the leftover looks dry after 3+ days in the fridge, a thin smear of softened butter (about ¼ tsp per slice) on the cut face before wrapping is fine.