1-1/2 teaspoons plus 1/2 cup butter, softened, divided
1 cup semisweet chocolate chips
1 cup butterscotch chips
1 cup peanut butter
1 cup dry roasted peanuts
1/4 cup milk
2 tablespoons cook-and-serve vanilla pudding mix
3-1/4 cups confectioners' sugar
1/2 teaspoon maple flavoring
Line a 13-in. x 9-in. pan with foil and grease the foil with 1-1/2 teaspoons butter; set aside.
In a microwave-safe bowl, combine the chips and peanut butter. Microwave, uncovered, on high for 1-2 minutes or until melted; stir until smooth. Spread half of the chocolate mixture into prepared pan; refrigerate. Stir peanuts into remaining chocolate mixture; set aside.
In another microwave-safe bowl, combine the milk, pudding mix and remaining butter. Microwave, uncovered, on high for 1-2 minutes or until mixture comes to a boil, stirring once. Gradually stir in confectioners' sugar and maple flavoring.
Spread over chocolate layer. Carefully spread with reserved peanut mixture (may need to reheat in microwave to spread easily). Refrigerate for 4 hours or until firm.
Using foil, lift candy out of pan. Discard foil; cut into 1-in. squares. Store in an airtight container in the refrigerator. Remove from the refrigerator just before serving.