In a mixing bowl, combine jelly powder and sugar. Mix well.
Add water. Stir well.
Transfer to a pot. Turn on heat then bring to a boil. Stir once in a while.
Transfer to a heat-resistant flat container. Let it set for at least 45 minutes.
Slice the jelly into cubes then set aside.
In a mixing bowl, combine evaporated milk, condensed milk, and all-purpose cream. Mix well.
Combine jelly cubes, shredded coconut, sago and milk mixture. Mix well.
Chill for at least 1 hour.
Transfer to serving cups. Enjoy your buko pandan sago!