Whisk together the honey, vinegar and oil. Season to taste with salt and pepper. Set aside.
Chop the chard into bite-sized pieces and place in a large bowl. Top with the celery, scallion, apples, walnuts and blue cheese. Pour dressing over and toss well to coat.
NOTE: if making ahead, dress the salad just before serving.
Recipe by white plate blank slate at https://whiteplateblankslate.com/chard-salad/