Steam the cauliflower and broccoli, and once they're cooked and slightly cooled, cut into bite-sized pieces and place in a bowl.Whisk together (or shake in a jar) the remaining ingredients to make the dressing. Taste and adjust salt and pepper. Toss a small amount of the dressing with the steamed vegetables; you'll have some leftover for salad greens or other uses.  (Recipe♦376)