Izakaya Marinated Quail Eggs are a popular Japanese appetizer that are packed with flavor and perfect for snacking. The quail eggs are boiled until cooked, then marinated in a mixture of soy sauce, mirin, sake, and sugar. This marinade infuses the eggs with a sweet and savory taste, making them irresistible. These bite-sized eggs are great for parties or as a side dish to accompany your favorite Japanese dishes.