PreparationFor vinaigrette: Whisk first 4 ingredients in a medium bowl. Gradually whisk in oil. Season vinaigrette to taste with salt and pepper. For salad: Place lettuce in a large bowl. Add vinaigrette, walnuts, and apple; toss to coat. Season with salt and pepper. Garnish with pomegranate seeds, tarragon, and cheese.
PreparationFor vinaigrette: Whisk first 4 ingredients in a medium bowl. Gradually whisk in oil. Season vinaigrette to taste with salt and pepper. For salad: Place lettuce in a large bowl. Add vinaigrette, walnuts, and apple; toss to coat. Season with salt and pepper. Garnish with pomegranate seeds, tarragon, and cheese.