Enjoy a serving of this rich and indulgent cheesecake on special occasions.
Heat oven to 325 degrees F. Mix cookie crumbs and margarine; press onto bottom of foil-lined 13x9-inch pan. Bake 10 min.
Beat cream cheese, sugar and vanilla in large bowl with mixer until blended. Add sour cream; mix well. Add eggs, 1 at a time, mixing after each just until blended.
Reserve 1 cup batter. Stir chocolate into remaining batter; pour over crust. Top with spoonfuls of reserved batter.
Swirl batters with knife. Bake 40 min. or until centre is almost set. Cool. Refrigerate 4 hours.
Per Serving: 280 calories; protein 4.9g; carbohydrates 22.3g; fat 20.6g; cholesterol 82.3mg; sodium 264.2mg.