Heat oven to 350°F. Line 15x10x1-inch pan with parchment, with ends of parchment extending over sides. Press cream cheese mixture onto bottom of prepared pan. Bake 18 to 20 min. or until lightly browned. Meanwhile, melt remaining butter; pour into medium bowl. Add eggs, brown sugar, corn syrup and remaining vanilla; beat with whisk until blended. Stir in nuts and ginger.