Add cereal to a large bowl, set aside.
Combine corn syrup and brown sugar in a saucepan over medium heat, stir.
Once dissolved, remove from heat and stir in the peanut butter and vanilla.
Pour the saucepan mix over the cereal and stir. Spoon into a prepared pan and press evenly. Set aside. Melt the chocolate & butterscotch chips then spread over the bars.