Thai sweet squares

To be honest, I do not know what this is.
I like trying things when they look interesting.
They were white squares with green filling sandwiched in between, there was also black.
I assumed black was sesame or red bean, so I got the green.
Both were individually wrapped inside.
The white layer reminds me of those Chinese snacks made from pressing flour together.
The texture and smell of the white part was almost the same.
The green layer was sugary jelly with coarse sugar texture.
Again it was too sweet and I was slightly disappointed I couldnt taste any pandan.