Wash the pumpkin thoroughly and remove the skin and seeds.
Cut the pumpkin into pieces, place in a steamer, and steam for 20 minutes until soft.
Mash the steamed pumpkin finely.
In a bowl, combine the mashed pumpkin, heavy cream, and honey. Mix well.
Dissolve gelatin in hot water and add to the pumpkin mixture, mixing thoroughly.
Pour into a mousse mold and refrigerate for at least 2 hours until set.