Mix dry ingredients thoroughly and combine with slightly beaten eggs. Stir in scalded milk and vinegar. Place in top of large double boiler and stir constantly over boiling water until dressing thickens. Cool and fold in cream. Mix vegetables in large bowl, and blend in the dressing. Serve garnished with salad greens and strips of pimiento and green pepper, or sliced stuffed olives. Yield: 50 servings.