1 (12-ounce) package peanut butter chips
1 cup sweetened condensed milk
1 (24-ounce) package roasted peanuts, salted
2 tablespoons margarine
1 (10-ounce) package miniature marshmallows
Grease a 9x13-inch pan; layer half of the nuts on the bottom. Mix the rest of the ingredients (except peanuts) and melt together.
Pour over nuts in pan. Sprinkle the rest of the nuts over the top. Press down. Cool and cut into squares.