Disassemble the broccoli into inflorescences (not very finely) and blanch in slightly boiling water for about 3 minutes. If you like it softer, then you can take longer. Drain and fill with cold water to preserve the color.
Finely chop the basil.
Walnuts (do not chop!) fry in a dry frying pan.
Cut the olives into halves (do not cut).
For dressing, mix olive oil, balsamic vinegar, wine, honey, salt and pepper.
Mix broccoli with olives, nuts, basil and season with dressing.