Cup Brown Sugar, packed
Cup (1 stick) Butter, softened
tsp. Baking Powder
Cups Semisweet Chocolate Chunks
Cup Caramel Topping
Preheat oven to 350 degrees. Spray a 13" x 9" baking pan with nonstick cooking spray. Combine sugar, brown sugar, and butter in large bowl; beat with electric mixer at medium speed 2 minutes or until smooth and creamy. Beat in eggs and vanilla until well blended. Add flour, baking powder, and salt; beat at low speed until well blended. Stir in chocolate chunks. Spread batter in prepared pan. Drop spoonfuls of caramel topping onto batter; swirl batter with knife. Bake 25 minutes or until golden brown. Cool completely in pan on wire rack.