In a saucepan, bring juice and (if using)honey to boil.
Add the agar agar powder or gelatin and be sure to whisk well until dissolved (around 1-2 mins).
If using stevia, i like to add it and stir it in after the liquid has been boiled.
Take off heat and pour liquid into desired moulds and place in fridge to set (around 30mins)
Enjoy!