Created by KittenCal on October 4, 2012
Step 1: Lightly grease a 11 x 7-inch or a 9 x 9-inch pan pan, or whatever size you want.
Step 2: In a medium saucepan melt together butter, peanut butter and butterscotch chips on very low heat until dissolved. Stir constantly to avoid burning. Remove from heat and allow to cool a bit before adding marshmallows (so they won't melt). Pour into pan (if you prefer thicker squares) and refrigerate for an hour to set. Cut into squares and serve.