1. Peel the purple potatoes, steam them and press them into mashed purple potatoes
2. Add glutinous rice flour and whole wheat flour to purple potato mash, and make purple potato dough
3. Divide the purple sweet potato dough into 45 g dough
4. Knead the small dough and place it in the mooncake mold to print the shape
5. Put the purple potato cake in a steamer and steam over medium heat for 15-20 minutes.
Tips:1. If there is no whole wheat flour, you can use flour instead;
2. The amount of glutinous rice flour and whole wheat flour should be adjusted appropriately according to the water content of the steamed purple sweet potato;
3. There is no sugar in the purple sweet potato cake, and the sweet-scented osmanthus syrup is especially delicate.
