Optional Serving Suggestions
Add finely shaved raw fennel, brussel sprouts or radishes.
Toss through some sliced red onion or shallots.
Try sliced pear (in-season and so lovely at the moment) instead of apple.
Replace the walnuts with hazelnuts, almonds or pepitas.
Use balsamic or red wine vinegar instead of apple cider.
Add some shaved parmesan or pecorino.
For a creamier version stir through a few tablespoons of creme fraiche or yoghurt.