Prepare oranges by paring off skin and pith. Slice whole oranges horizontally, and then cut each slice into quarters. In a large salad bowl, combine fennel, orange slices, parsley, olives ...

Using a mandoline or a very sharp knife, slice the orange very thinly (about 2mm thick). Remove any pips. Tip the sugar and 400ml/14fl oz water into a large pan and bring to the boil stirring ...