In a mixing bowl, combine flour, sugar, and salt. Add cold butter and mix until crumbly. Add ice water and mix until dough forms. Press into tart pan and chill for 15 minutes.
In another bowl, mix pumpkin puree, heavy cream, brown sugar, beaten eggs, cinnamon, ginger, nutmeg, and salt until smooth. Pour into crust.
Bake for 45 minutes or until set. Cool before serving.