Step 1

Heat oven to 350ºF.

Step 2

Microwave chocolate and butter in large microwaveable bowl on HIGH 2 min. or until butter is melted. Stir until chocolate is completely melted. Stir in pepper. Add sugar; mix well. Blend in eggs. Add flour; mix well. Stir in 1/2 cup nuts. Spread half the batter into 13x9-inch pan sprayed with cooking spray.

Step 3

Microwave caramels and milk in microwaveable bowl on HIGH 2-1/2 min., stirring after 1 min. Stir until caramels are completely melted and mixture is well blended; spread over brownie batter in pan. Cover with remaining brownie batter. (Some caramel sauce may peek through.) Sprinkle with remaining nuts.

Step 4

Bake 25 to 30 min. or until top is firm to the touch. Cool.