Pickled red onions are a tangy and flavorful condiment that adds a burst of color and taste to any dish. Made by soaking thinly sliced red onions in a mixture of vinegar, sugar, and spices, pickled red onions are a versatile topping that can be used in salads, sandwiches, tacos, and more. The pickling process mellows the sharpness of the onions and infuses them with a sweet and tangy flavor. They can be stored in the refrigerator for several weeks, making them a convenient and delicious addition to your pantry.