Make a classic crème anglaise cooked to 83°C (181°F). Strain through a china cap sieve.
Blanch the rice for 3 mins in boiling water. Cool using cold water then cook in boiling milk until soft.
Remove from the heat and add first the sugar, then the crème anglaise and the dissolved gelatine.
When almost cool, add the whipped Sublime.
Cut the rhubarb into small cubes. Bring the orange juice and sugar to the boil. Add the rhubarb cubes and cook for one minute.
Leave to cool and then drain. Gently heat the juice and add the dissolved gelatine. Combine the rhubarb cubes with 2/3 of the jelly.
Cut the strawberries into cubes and combine with the jellied rhubarb juice.
Spread crystallized white chocolate between 2 sheets of plastic and press down firmly using a pastry cutter to cut out discs.
Pipe the rice into the bottom of the glass. Add a layer of rhubarb jelly on top and refrigerate to set. Place a small white chocolate cover on top. Add strawberry jelly and decorate.