Huaishan and purple potato are sliced and steamed separately, be careful not to put together to dye
Add a little coconut milk to the steamed yam and purple potato, and pour it into mud. (Huaishan is wrapped in plastic wrap and then kneaded with a rolling pin)
In the plum-shaped mold, first put the yam mud, press it tightly, then put it into the purple potato puree, then turn it back and release it.
Finally, spread a layer of rose sauce on the mud of Huaishan.