1 cup Graham Cracker Crumbs
1 cup plus 3 Tbsp sugar, divided
3 Tbsp butter or margarine, melted
5 pkgs (yes 5) (8 ounces each) cream cheese
1 Tbsp vanilla
1 cup sour cream
2 cups fresh blueberries for garnish. (You can use pie filling or fruit you have cooked down and thickened)
Preheat oven to 325. Mix Graham Cracker Crumbs, 3 Tbsp of the sugar, and butter together. Press into bottom of 13 by 9 pan.
Beat together cream cheeses, remaining one cup sugar, flour, and vanilla in bowl till well blended. Add sour cream and mix well. Add eggs, one at a time, beating after each addition. Pour over crust. Puree the berries and drop by spoonful over batter. Cut through batter to marble.
Bake at 325 for 50 minutes or till center is almost set. Cover and refrigerate at least four hours.