Halve the pumpkin and scoop out seeds and any stringy bits. Cut pumpkin into medium chunks, no need to dice. In a saucepan over medium-low heat, cover the pumpkin with water and bring to the boil. Reduce heat to low, cover and simmer for 20-30 minutes or until tender. Drain, cool and remove the peel then mash with a potato masher before draining well.