Line 13x9-inch pan with foil, with ends of foil extending over sides; spray with cooking spray. Beat 1/2 cup butter and granulated sugar in large bowl with mixer until blended. Add eggs; mix well. Blend in chocolate syrup and vanilla. Gradually add flour, mixing well after each addition. Stir in nuts and half the semi-sweet chocolate; pour into prepared pan.
Bake 35 to 40 min. or until toothpick inserted in center comes out with fudgy crumbs. (Do not overbake.) Cool completely.
Microwave remaining semi-sweet chocolate and remaining butter in large microwaveable bowl on HIGH 1-1/2 to 2 min. or until butter is melted; stir until chocolate is completely melted and mixture is well blended. Cool 5 min.
Add sour cream to melted chocolate mixture; mix well. Gradually add powdered sugar, mixing well after each addition. Spread over brownie. Use foil handles to lift brownie from pan before cutting to serve.
Each serving of this sweet treat goes a long way on chocolate flavor.
Prepare using PLANTERS Walnuts.
Calories From Fat
% Daily Value*
Total Fat 11g
Saturated Fat 5g
Trans Fat 0g
Total Carbohydrates 27g
Dietary Fibers 1g
* Percent Daily Values are based on a 2,000 calorie diet.
* Nutrition information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.