This is a vegan version of a classic, authentic German potato salad, adapted to ingredients available at our favorite supermarket, Wegmans. None of the measurements are set in stone. Itâs just that the potatoes we liked came in a 5-lb bag, the shitake mushrooms came in an 8-oz package, etc. etc.
(For an even more authentic option that is not vegan, substitute fried bacon and bacon grease for part or all of the olive oil and umami-packing ingredients, i.e., shitake, shallots, roasted garlic, paprika.)