Cut, then scoop the passionfruit seeds and liquid into a sieve and using the back of a spoon push the liquid through into a bowl - to just extract the juice; add to the blood orange juice

Soak the gelatine leaves in cold water for 5 minutes. In a saucepan add the cup of water and the maple syrup if using, and heat on the stove until hot. Then squeeze out the excess water from the gelatine and add to the hot water, stir then remove from the heat. Add the mixture to the juice; stir to combine

Pour the mixture to a mould and allow to set in the fridge for at least 4 hours or overnight. To remove from the mould place in hot water for a few seconds to a minute - not too long though or it will start to melt. Then turn out onto a bench and cut into cubes