Whisk first 8 ingredients in medium bowl to blend; season to taste with ground white pepper. (epicurious.com)
Whisk in olive oil, vinegar, lemon juice, black pepper, sugar, remaining 1/4 teaspoon salt, and remaining 1/8 teaspoon white pepper, and whisk well to combine. (perfectpuree.com)
I also added a dash of white pepper along with the black. (101cookbooks.com)