I tasted this in a thai/viet rest. in Rochester.
It looked like poached eggs. 2 pieces of flat sticky rice wrapper filled with ground (yellow) mung beans.
this was an appitizer not a dessert.It was hot tempwise & the rice got strechy like mozzarella.It had a coconut sauce on top. (might be called Tet cake)
Help I've got to find in NY/NJ area. tia, mark