Out on the frontier of extreme food, a pizza chain in Canada has taken things to a whole new level.

Instead of layering multiple toppings on one another, Boston Pizza is layering actual pizzas on top of one another.

By stacking pizzas, Boston Pizza – which has 350 locations north of the border – is asking customers:  why have a slice of pizza when you can have a slice of pizza CAKE? (Thrillist)

See the pizza cake here!

photo: sxc