Triple Layer Peanut Butter Brownies

pkg. (19 to 21 oz.) brownie mix (13x9-inch pan size)

1 cup  cold milk

1 pkg. (3.4 oz.) Vanilla Flavor Instant Pudding

1 cup  creamy peanut butter

1/2 cup powdered sugar

1-1/2 cups  Whipped Topping (Do not thaw.)

3 squares BAKER'S Semi-Sweet Chocolate

1/2 cup  Dry Roasted Peanuts, coarsely chopped

PREPARE and bake brownies in 13x9-inch pan as directed on package; cool. Meanwhile, beat milk and pudding mix with whisk 2 min. Add peanut butter and sugar; mix well. Refrigerate until brownies are completely cooled.
SPREAD pudding mixture over brownies.
MICROWAVE COOL WHIP and chocolate on HIGH 1 min., stirring every 30 sec. Spread over pudding; sprinkle with nuts. Refrigerate 1 hour.