Created by breezermom on July 18, 2017
Step 1: In a small bowl, whisk the apple cider vinegar with the olive and walnut oils, crème fraîche, and Dijon until smooth and season the vinaigrette with salt and pepper.
Step 2: In a small skillet, heat the walnuts, tossing occasionally, until toasted, about 6 minutes.
Step 3: Arrange the lettuce on a large serving platter, followed by the celery stems and leaves, warm walnuts, and the grapes.
Step 4: Drizzle the salad with the vinaigrette, season lightly with sea salt and pepper, and top with the blue cheese before serving.