Step 1Toast walnuts on baking sheet at 350 degrees until lightly browned, about 10 minutes.
Step 2Combine walnuts, arugula, cheese and apple slices in large salad bowl. Toss with dressing and serve.
Step 1Combine oil, vinegar, shallots, garlic and salt and pepper to taste in jar or bowl. Add Calvados and shake in jar or whisk well in bowl. Makes 1 1/4 cups.