Shred the cabbage finely. Put in a bowl and set aside. You can do this by hand with a box grater, a very sharp knife, or with the slicing blade of your food processor.
Combine the mayonnaise, sesame oil, sherry, rice vinegar, and soy sauce in a small bowl. Whisk to combine completely.
Add the sesame seeds and ginger to the cabbage and toss to combine.
Pour the sauce over the cabbage, toss to combine.
Put in a nice serving bowl and chill until ready to serve.
Notes
To make this vegan or vegetarian, substitute vegan mayonnaise. If you can find the red pickled ginger, it makes a nice-looking presentation. You can use regular sesame seeds instead of the black ones.
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