For the raspberry jelly, select the raspberries. Strip the currant from the stems. Place fruit and lemon juice in a saucepan and simmer over low heat until fruit is broken down.
Transfer to a strainer lined with kitchen towel and drain juice. The amount of juice should be 1/2 liter. Cut mint leaves into thin strips. Combine juice and sugar and bring to a boil while stirring.
Then boil for 3 minutes. Add mint. Pour into sterile jars and seal.