Add 60 ml cold water into a bowl, sprinkle the gelatine powder on top, stir to dissolve and leave for 5 to 10 minutes
Chop the mint leaves into very small parts.
Pour the apple juice into a saucepan and bring to the boil.
Add the caster sugar and lemon juice and boil for 1 minute.
Then add the chopped mint leaves and (optionally) the food colouring. And boil for 2 minutes.
Heat the gelatine in a microwave for 10 seconds until runny again and then add the gelatine to the mix and stir until dissolved
Pour into the resealable jars and seal. Optionally use a sieve.
Cool in a fridger for about 4 hours until set.