Blood orange and rosemary jelly

Method

1. Put the orange juice and sugar into a saucepan. Lay the rosemary sprigs on a board and bruise to release their flavour by pressing them firmly with the handle of your knife, then add to the saucepan. Immerse the gelatine sheets in a bowl of cold water and leave to soften for about 5 minutes.
2. In the meantime, place the saucepan over a gentle heat to dissolve the sugar. As the juice begins to warm through, it will take on the flavour of the rosemary. When the sugar has completely dissolved and the juice comes just to the boil, take off the heat. Remove the gelatine from the cold water and squeeze to remove excess liquid, then add to the hot orange juice and stir to dissolve. Strain through a sieve into a bowl, to remove any pithy bits and the rosemary.
3. Lightly oil 4 individual pudding bowls and pour in the jelly. Allow to cool completely, then place in the fridge to set – this will only take 1 or 2 hours. I like to serve these jellies on the day they are made, as they continue to set if you leave them in the fridge for longer and can become too firm.
4. To serve, place a slice of blood orange on each serving plate and squeeze over a little more juice. To unmould each jelly, briefly dip the base of the mould into warm water, then run a little knife around the rim and invert on to the plate. Serve straight away.