This is the dipping sauce for Surefire Siu Mai although it could be used for just about anything. It is not hot like Chinese Hot Mustard but it does end with just a little zing. We love this sauce! Recipe is from Martin Yan's Chinatown Cooking. It can be stored in the refrigerator up to a week but should be brought to room temperature before serving. Recipe does not include the 30 minutes to let the flavors marry in the time estimate.