Chocolate Marshmallow Mile-High Squares
2 cups (12 oz pkg.) Nestle Toll House Semi-Sweet Chocolate Chips
1 2/3 cups (11 oz pkg.) Nestle Toll House Butterscotch Chips
1/2 cup creamy or chunky peanut butter
9 cups (16 oz pkg.) mini-marshmallows
1 cup dry roasted peanuts
Line 9x13 baking pan with foil.
Microwave chocolate and butterscotch chips, and peanut butter in large, uncovered, microwave-safe bowl on medium-high (70%) power for 2 minutes; STIR.
The morsels may retain some of their original shape.
If necessary, microwave at additional 10- to 15-second intervals, stirring until melted.
Cool for 1 minute.
Stir in marshmallows and peanuts.
Spread into prepared pan.
Refrigerate until firm.
Cut into squares.