Mirin is a popular Japanese condiment that is a form of rice wine, similar to sake but with a lower alcohol content and higher sugar level. It has a distinct, sweet flavor that is used to enhance sauces, marinades, and other dishes, particularly in Japanese cuisine. Mirin is most commonly used in cooking to add depth and balance to other flavors. It can also help to reduce fishy or gamey smells in meats and seafood. Its syrupy consistency and golden to light amber color gives a pleasing sheen to dishes when used as a glaze. It's crucial in teriyaki sauce, miso glaze, and many other traditional Japanese recipes. Mirin can also be found in two variations - Hon Mirin (True Mirin) with higher alcohol content and Shio Mirin with a lower alcohol content but added salt. It's not typically consumed as a drink due to its sweet flavor. Stored properly in a cool place or refrigerator, mirin can last for several months.

Mirin is most commonly found in the international aisle of a grocery store, specifically in the Asian or Japanese section. If your store has a dedicated aisle for cooking wines or vinegars, it might be there as well. If you still can't find it, check with the customer service desk as some stores might keep it with the alcoholic beverages because of its alcohol content.