This traditional German potato salad is a lighter alternative to the creamier versions. It’s a versatile side dish that pairs well with various main courses. Ingredients 1 kilogram waxy potatoes (such as Yukon Gold or red potatoes) 3 onions 10 grams fresh parsley 60 milliliters white wine vinegar 300 milliliters vegetable broth 1 bay leaf 1 tablespoon Dijon mustard 1 tablespoon sweet mustard 100 milliliters vegetable oil 1 tablespoon cornstarch Sugar, salt, and pepper to taste Vegetable oil (for frying) Instructions Cook .