Scotcheroos - Majestybakery
In a medium heatproof bowl set over a saucepan filled with one inch of simmering water, combine the chocolate chips with the butterscotch chips and stir occasionally until thoroughly melted, about 5 minutes. Using an offset spatula, spread the melted chocolate topping over the peanut butter bars in an even layer. Refrigerate until the bars are cool and the chocolate is firm, at least 30 minutes. Using the overhanging parchment paper as a handle, transfer the slab to a work surface. Using a long, sharp knife, cut into sixteen 2-inch bars.