I've been wanting to make an impressive desert and so have been thumbing through some cookbooks. I found a picture (no recipe of course) of a slice of a torte that had a pastry and sponge base and then it had VERTICAL layers of pastry and sponge. It was in the classic wedge shape. I can't seem to wrap my brain around how to do it. This looked very impressive and so I immediately want to try my hand. Any ideas?