Chocolate Toffee Layer Bars

"These Chocolate Banana Toffee Layer Bars are much like the classic seven layer bars. They are loaded with ingredients that fight for attention instead of blending together. This recipe is flavored with chocolate covered toffee bits, chocolate chips, banana chips, and walnuts that sit in layers over a graham cracker crust. Everything is held in place by a drizzling of sweetened condensed milk that caramelizes during cooking."