Forget the frosting! You can use an 8-oz container of frozen whipped topping, thawed, instead.
Some caramel toppings are thicker and stickier than others. If the type you purchased is too thick to pour, warm it in the microwave just until it can be poured.
This ooey-gooey, very rich cake needs to be joined by only a glass of milk or a cup of steaming coffee.