This is an easy coffee jelly recipe using black coffee and gelatin that can be made simply by mixing and chilling. Mix the coffee and gelatin, heat in the microwave, pour into an ice cube tray, and chill in the refrigerator until firm. Once the coffee jelly has set, put it in glasses and top with milk, whipped cream, and cocoa powder as desired. Since it doesn't require cooking over a fire, it's easy to make and offers a smooth, wobbly texture and a rich coffee aroma, making it a perfect café-style dessert for the hot season.