Anyone have a good recipe for a good deli rainbow cake? The kind that comes in a long rectangle shape? Thanks!?

I've only had that cake in baltimore, and its got a unique, dense texture that I'm trying to recreate. any advice would be appreciated!Anyone have a good recipe for a good deli rainbow cake? The kind that comes in a long rectangle shape? Thanks!?
Google Rainbow Cakes, I did %26amp; they have way to many for me list . I am sure you will find the one you are looking Hope so ! Looking at them pic's made me hungry! LOLAnyone have a good recipe for a good deli rainbow cake? The kind that comes in a long rectangle shape? Thanks!?
There's one on this website. I think you should definitely see it.

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