1. Purple sweet potato peeled, washed and steamed
2. Twist the purple sweet potato into a puree while it is hot, mix it with sugar and glutinous rice flour, knead it into a dough, wake up for about 5 minutes
3. Divide the kneaded dough into several small doughs
4. Spread a layer of glutinous rice flour on the mold and put the kneaded dough into the mold
5. Press the mold down firmly, then lift the mold and push it outwards slightly, the purple sweet potato tufts are ready
6. Put the prepared purple sweet potato balls into the steamer, and steam for 2 minutes after boiling
Tips:1. The glutinous rice flour should be added to the purple sweet potato while it is hot, the dough will be softer and waxy
2. The purple sweet potato tuan tuan will taste even better after being cooled.
3. If you like fillings, you can add red bean paste
