I laid the design on the bottom of a bread pan. Silly me, I was fiddling with my camera and it rose a bit before I could get the photo.
The white stuff is white rice flour. I used that liberally so the dough would come out of the pan. The rest of the dough went on top of the design and it rose in the pan.
I flipped it out onto a baking sheet
The design was a little smashed, but I was pleased to see that it hadn't all melted together.
After baking, the design was even more prominent.
Next time, I'll be a bit more artistic, now that I know it works this well.