Sounds the same as a Lithuanian tree cake.
https://www.thespruce.com/how-to-make-lithuanian-tree-cake-4037686
An epi of The Great British Baking Show featured a multilayered cake made by pouring a thin layer in a [tall?] round cake tin, broiling it for a minute or so, then pouring another thin layer on top, and broiling that for t+ to get a darker layer, and another layer, etc, alternating the broil times to get the light/dark layer effect effect.
I'm remembering them as 1/4" layers. That, and one engineering inclined baker measured the total batter, and figured out how much to use for each layer, rather than eye-balling it.
Wow, the Lithuanian tree cake even has branches! Looks fantastic.
I like the one with chocolate and flowers.
That is a really nice website!