Step 1

Heat oven to 325°F.

Step 2

Line 13x9-inch pan with foil, with ends of foil extending over sides. Combine graham crumbs, butter and 2 Tbsp. sugar; press onto bottom of prepared pan.

Step 3

Beat cream cheese, 1 cup of the remaining sugar and 1 tsp. vanilla in large bowl with mixer until blended. Add 1 cup sour cream; mix well. Add eggs, 1 at a time, beating on low speed after each just until blended. Pour over crust.

Step 4

Bake 40 min. or until center is almost set. Mix 1/4 cup of the remaining sugar, remaining sour cream and remaining vanilla until blended; carefully spread over cheesecake. Bake 10 min. Cool completely. Refrigerate 3 hours.

Step 5

Use foil handles to lift cheesecake from pan before cutting to serve. Toss blackberries with remaining sugar; spoon over cheesecake.