This creamy five-ingredient potato salad features two surprise ingredients: pickled jalapeños, which lend heat and acidity, and blistered corn, which adds sweet and smoky notes. Rather than the usual cookie-cutter cubes of boiled potatoes, chunks of potato are simmered until they are so soft that they break up a little bit when combined with the remaining ingredients, adding extra creaminess to the traditional side. Rubbing mayonnaise on the cor…