Science-Minded Church Picnic Potato Salad

Back when I still lived in the Midwest I was operating under the delusion that I didn&rsquo;t like mayo. I&rsquo;ve now learned that I was just exposed to far too much Hellmann&rsquo;s and not enough Kewpie. Having become a California girlie and J. Kenji Alt devotee, I&rsquo;ve made some adjustments to the potato salad recipe I grew up with. Its soul is still made up of mayo and yellow mustard,…