Used 1.5 lbs potatoes because that's what size the bag was. Used three ears of corn because that's what I had. And there was still far too much dressing--particularly given that the vegetables were already roasted in olive oil. I added chopped radishes and cornichons because I wanted a little crunch, color and tang. The potato salad was well received by group but my partner was just okay with it. I will probably try the corn and potato salad idea one more time, but with boiled redskin potatoes. I might still roast the corn. I liked the dressing--I liked the hint of mustard and the smidge of balsamic vinegar. There was just too much of it. And I liked my additions of raddish and cornichons. Diced sweet or red onion would be good too.