Not your usual Tabbouleh, this salad merely has a similar consistency and shares some common ingredients with its authentic cousin. It has a lot of crunch thanks to the apple, radish and walnuts, and involves no actual 'cooking'. The bulgur and dressing could easily be made a day in advance, but I do find it tastes best if the salad, fully combined, is allowed to sit for about 30 minutes to an hour before serving. Ideal to share, bring it along to your next potluck party! Serves 6-8 easily as a side. Prep time includes the 30 minutes it takes for the bulgur to soak.