In a food processor or blender fitted with the metal blade, add 2 tablespoons of sugar and thawed Durian; process to a smooth puree, about 30 seconds.
Taste and add more sugar if necessary. Reserve 1/4 cup.
Beat the cream cheese until fluffy. Add the condensed milk and continue beating until smooth. Beat in pureed Durian, eggs, sour cream, vanilla extract, and durian or banana extract. Pour the batter into prepared graham cracker crust.
Bake 1 hour or until filling is set and edges are lightly browned. Serve warm or chill overnight in the refrigerator.