1. Combine raisins and water in a small microwave-safe dish. Cover tightly with plastic wrap and microwave on high for 1 minute. Set aside to cool.
2. Melt the butter in a small skillet over medium low heat. Add the pine nuts and salt. Cook, stirring the skillet occasionally, until golden, 5-7 minutes.
3. In a small bowl, combine the yogurt with the mustard, honey, Greek yogurt, vinegar, milk and a pinch of kosher salt. Stir well, the set aside.
4. Using a mandolin, sharp knife or the slicing blade in a food processor, very thinly slice the broccoli florets and stems.
5. Arrange the broccoli on a serving platter. Top with the grapes, plumped raisins and watercress (or other greens) Drizzle with the dressing or serve dressing separately. Garnish with pine nuts and serve.