Dip the rings in the lemon juice and water to stop them going brown.
Place the rings next to each other on a baking tray and dry them in the oven (approx. 60°C top and bottom heat) for between 7 and 10 hours.
The popular weekly market (Wuche-Märcht in the local dialect) in Stans is held every Saturday morning between late April and early November. It's the perfect place for finding cheese, dried sausages, carrots and dried apple rings.