Sprinkle with sugar and allow to macerate for an hour or so until the juices begin to flow. Preheat the oven to 200°C. Cover the rhubarb with a sheet of parchment paper and roast in the oven for ...
Mix the ingredients around the dish a little so everything is coated in sugar and rhubarb juice. Roast for around 30 minutes until the rhubarb spears are soft but not yet falling apart.