There is a Peruvian dessert called volador that has many crispy cookie-like layerssandwiched with dulce de leche and pineapple jam.This seven layer cake is a similar concept, but the cookie layers have been replaced with buttery yellow cake.The whole thing is frosted with a dulce de leche/nutella icing.

It takes a bit of time to bake the extra cake layers, but it's not at all difficult, and when you slice into all of those pretty layers, it will be worth the effort.Another benefit is that something about the thinner cake layers (and extra filling?) seems to keep this cake especially moist.
If you're not a pineapple fan, substitute guava or raspberry jelly for the pineapple filling, or skip the fruit altogether and use nutella in its place.

See Also

Coconut layerCake with Coffee Frosting

Dulce de Leche Pionono

Chocolate Sheet Cake with Dulce de Leche Frosting