| 2 Apples | |
| 2 Bananas — Peeled |
| 1. | Preheat the oven to 90°C/gas ¼. |
| 2. | Line 2–3 large baking trays with greaseproof paper. |
| 3. | Slice the apples and bananas very finely with a mandolin or sharp knife and lay the slices on the lined baking trays in a single layer. |
| 4. | Put the trays into the preheated oven and bake for 1½–2 hours. The apples will be crisp before the bananas, so check them after 1½ hours. The bananas can take up to half an hour longer in the oven, depending on their thickness. |
| 5. | Leave the fruit crisps to cool on the tray, then transfer to an airtight container and eat within 1 week. |