my dad has spent half his life trying to design a cuboid samosa and failing and I have never seen him look sadder and more disappointed when he told me "I cannot even depend on you to fix this after I am gone"
He is not alone. My father spent decades perfecting a latke recipe that makes absolutely perfect potato pancakes only to have grandchildren who do not like potato pancakes.
Yeah, you don’t see many cuboid dumplings.
It’s doable with two strips of dough, but still… two pieces of dough cut reasonably precisely is pretty needlessly complicated.
If he wants to give it a try, two 3x1 strips arranged like the leather on a baseball can make a cube. Good luck sealing it.
That would be like a pyramidal hamburger or something. On the other hand think of the possibilities for assimilation—it would be futile to resist a cubical samosa!