The Midori Sour cocktail has a relatively recent history, with its origins dating back to the 1970s. It was created to showcase the Japanese melon liqueur known as Midori, which was introduced to the United States in 1978. The cocktail gained popularity in the 1980s and 1990s, particularly as a trendy and visually appealing drink. While the precise details of its creation are somewhat unclear, it's generally believed that the Midori Sour was first concocted to highlight the unique flavor and vivid green color of Midori liqueur. The cocktail typically consists of Midori liqueur, fresh lemon juice, and simple syrup, shaken with ice and served over fresh ice in a rocks glass. It's known for its sweet and sour flavor profile and the captivating green hue provided by Midori.