Mix the mayonnaise, vinegar and honey or maple syrup in a large bowl.
Finely slice Savoy Cabbage, Celery and spring onion. Grate Carrots and cut apple into matchstick-size pieces.
Put veg into the bowl with the dressing and toss well. Add salt and pepper to season if you'd like.
Note: You can substitute Spring Onion for finely chopped Red Onion if you'd like more kick. Sweet corn is also nice to add when in season.