Soy sauce pickles are a popular Japanese side dish made by marinating vegetables in a mixture of soy sauce, vinegar, and sugar. The pickles have a tangy and slightly sweet flavor, with a hint of umami from the soy sauce. They are crunchy and refreshing, making them a great accompaniment to rice or as a topping for sandwiches. These pickles are easy to make and can be stored in the refrigerator for up to a week.