I had the Rose Cove Broccoli Salad in Ogunquit this past August. It is really fantastic! I had no intention of ordering it - but the man in front of me in line ordered it - and then I had to try it too. Wow! I bought it the next day as well. I asked them the dressing, and they told me it was mayo, white vinegar and sugar. I just tried duplicating it and it came out pretty well, although I "blanched" the broccoli a bit too long. I am watching calories so I only used 1/4 of mayo for the dressing - it still made enough to coat all the broccoli lightly. Your dressing sounds interesting, perhaps I will try next time.