Tip all the ingredients into a large saucepan along with 2 tbsp water (omit the water if you’re using frozen rhubarb). Simmer over a medium heat for 10-15 mins, stirring occasionally, until the rhubarb has softened and is almost collapsing and the mixture has thickened. If you’re using frozen rhubarb, you may like to stir in a drop of red food colouring to enhance the pink colour. Transfer the compote to a bowl and leave to cool completely.
