This is so simple. You use the equal amount of mirin, soy sauce, and rice vinegar as base for the pickle. My SIL's friend, Michelle brought this out for a dinner one night and I loved it because it was so simple to make. You can use any combination of cut up vegetable slices or chunks such as cucumbers, carrots, daikon, turnips, green beans, okra, etc. These pickles last in the refrigerator a long time - at least 6 months or so. As they age, the pickles will get stronger tasting - but I just love them that way! In addition to the main 3 pickle ingredients, you can add garlic, Korean chili peppers, Japanese chili peppers, sesame oil, kochujan, etc. I like to keep mine simple with garlic and Korean/Japanese red chili peppers only. As you eat the pickles, you can continue to add more fresh veggies to the jar. As time goes, the pickling brine will weaken from the liquids released by various vegetables and at some point in time needs to be redone. Serving is a total guess. Note: If you are using thick skinned American style cucumber, peel, seed and cut in half lengthwise first. If you are using Japanese, hothouse, or long thin cucumbers, no need to peel, seed, or cut in lengthwise first.