These apple slices are baked briefly in caramel, which gives them a luscious toffee coating. They can then be baked into a tart, brioche or cake without throwing moisture into the dough or batter during cooking.
Preheat the oven to 200°C. Peel and core the apples and cut them into eighths lengthwise. Butter a baking dish and arrange the apple slices in a single layer over the base.
Bring the water and castor sugar to a boil in a saucepan without stirring and c