Purple potato salad with orange peppers, scallions, and parsley

I decided to make potato salad as a side dish to go with some chicken the other day. I never seem to make the same potato salad twice, so I was happy when I got inspired at the market with the purple potatoes and orange bell peppers and thought the colors would really pop next to each other. I couldn't wait to get home to start cooking. I boiled the potatoes whole (to keep them from soaking up water) , sliced them in halves while they were still hot, splashed them a few times with white wine vinegar (They absorb flavour more when they are hot.), and set them aside while I prepared the rest of the ingredients. To the potatoes, I added the orange bell peppers, celery, scallions, and chopped parsley. For the dressing, I added lemon juice, a little pesto, and salt and pepper to mayonnaise. After combining all the ingredients, I served the salad on a white platter lined with butter lettuce leaves. The salad was not only delicious, but I loved how something as ordinary as potato salad could be given a stylish new look...