First, make the mayonnaise. Gently warm the vinegar for a few seconds in the microwave or a small pan to take the chill off.
Place the egg yolks in a blender and blend on high for 10 seconds. With the motor running, drizzle in a little of the warm vinegar, followed by about a quarter of the oil.
Continue blending on high and add the rest of the vinegar, then slowly and steadily drizzle in the remaining oil until the mayonnaise is thick and creamy.
Season with salt and pepper, then transfer to a container and refrigerate.
Prepare the vegetables.
Cut the cabbage half into two quarters. Lay each piece on its flat side, cut out the tough core, and then thinly shred the leaves.
Coarsely grate the peeled carrot. Trim the roots and tough green ends from the spring onions, then chop them finely.
In a large bowl, combine the shredded cabbage, grated carrot, chopped spring onions, and the dried fruit.
Add just enough of your chilled mayonnaise to bind all the together.
Mix well, season with a little more salt and pepper if needed, and serve.