the one i have is pnly a slight variation
pie shell as above
750g butternut pumpkin cubed
1 cup brown sugar
2 eggs lightly beaten
1/3 cup cream
1 tbs sweet sherry or brandy
1/2 tsp ground ginger
1/2 tsp ground nutmeg
1 tsp ground cinnamon

cook pumpkin in bopiling water until tender, drain, mash puch through sive and leave to cool
whisk eggs and sugar add cooled pumpkin, cream sherry and spices and stir thoroughly pour into pastry shell, smooth surface and bake 1 hour