2 1/3 cup graham cracker crumbs
1/2 cup (1 stick) unsalted butter, melted
1/4 cup sugar
4 8-ounce packages cream cheese, room temperature
1 1/2 cups sugar
1/4 cup all purpose flour
5 large eggs
1 16-ounce container sour cream
1/4 cup milk
1 tablespoon vanilla extract
6 tablespoons blueberry jam
Position rack in center of oven and preheat to 375°F. Wrap outside of 10-inch-diameter springform pan with heavy-duty foil. Combine all ingredients in processor. Blend using on/off turns just until crumbs are moist. Press crumb mixture firmly onto bottom and 2 inches up sides of prepared pan. Bake until crust begins to brown, about 8 minutes. Transfer crust to rack and cool. Maintain oven temperature.
Using electric mixer, beat cream cheese and sugar in large bowl until will blended. Beat in flour. Add eggs 1 at a time, beating just until combined. Beat in sour cream, milk and vanilla. Pour filling into crust.
Place springform pan in large roasting pan. Pour enough hot water into roasting pan to come 1 inch up sides of pan. Bake cheesecake until just set in center and top is slightly puffed and golden brown, about 1 hour. Turn off oven; keep door closed. Let cheesecake stand in oven 1 hour. Remove cheesecake from roasting pan. Refrigerate until cold, at least 6 hours. Cover; refrigerate overnight.