Place the walnuts onto a baking tray and toast in the oven at 180C until lightly browned – this should take about 8 minutes but keep a good eye on them to make sure they do not char!
Remove the walnuts from the oven and place into a bowl to cool.
Cut the apples into quarters, core then cut into bite-sized pieces.
Whisk together the Hellmann's Mayonnaise and KNORR Light Yoghurt and Herb Salad Dressing until combined.
Combine all the ingredients together then place into a serving bowl and serve immediately.