Method:
To prepare the vinaigrette, add all ingredients except olive oil to a blender. Blend at medium speed for 2 minutes, then slowly drizzle in olive oil with machine running until dressing slightly thickens. Taste and adjust seasoning. Transfer to a bowl, cover and chill for at least 1 hour.
To assemble the salad, place onion in water to cover, add a few ice cubes and let sit for at least 15 minutes before serving. When ready to assemble salad, pour off water and drain onion thoroughly.
Toss greens and dill together. Arrange on a platter. Arrange eggs, fennel and radishes on top of the greens. Roll up slices of smoked salmon and arrange on salad. Serve with wafers and dressing on the side.